@Proceedings{CitationKey,
title = {{Designing E-Business Systems: Markets, Services, and Networks}},
year = {2009},
editor = {Weinhardt, Christof and Luckner, Stefan and Stößer, Jochen},
number = {22},
series = {Lecture Notes in Business Information Processing (LNBIP)},
address = {Heidelberg},
publisher = {Springer},
note = {7th Workshop on E-Business, WEB 2008, Paris, France, December 13, 2008, Revised Selected Papers. ISBN 978-3-642-01255-6},
url = {http://www.springerlink.com/content/978-3-642-01255-6/},
abstract = {This book constitutes the proceedings of the 7th Workshop on E-Business, WEB 2008, held in Paris, France, on December 13, 2008. As a pre-ICIS workshop, it provided an open forum for e-business researchers and practitioners to share research findings, explore novel ideas, discuss success stories and lessons learned, and map out major challenges with regard to the design of e-business systems.

The 17 papers presented were carefully reviewed and selected from a total of 31 full papers and 30 research-in-progress papers which were accepted for presentation at the workshop from a large number of submissions. The topics covered are electronic markets, electronic services, radio frequency identification, service-oriented architectures, virtual communities, and Web intelligence.}}
					

@Proceedings{CitationKey,
title = {{Handbook on Information Technology in Finance}},
year = {2008},
editor = {Schlottmann, F. and Seese, D. and Weinhardt, C.},
address = {Berlin, Heidelberg},
publisher = {Springer},
url = {http://dx.doi.org/10.1007/978-3-540-49487-4}}
					

@Proceedings{CitationKey,
title = {{eOrganisation: Service-, Prozess-, Market-Engineering}},
year = {2007},
editor = {Oberweis, Andreas and Weinhardt, Christof and Gimpel, Henner and Koschmider, Agnes and Pankratius, Victor and Schnizler, Björn},
volume = {1 & 2},
publisher = {Universitätsverlag Karlsruhe},
url = {http://www.uvka.de/univerlag/volltexte/2007/190/},
abstract = {"eOrganisation: Service-, Prozess-, Market-Engineering" ist das Leitthema der 8. internationalen Tagung Wirtschaftsinformatik 2007 (WI 2007). Die Tagungsbände richten sich an Wissenschaftler und Praktiker, und bieten einen Einblick in aktuelle Forschungsfelder der Wirtschaftsinformatik.}}
					

@Book{CitationKey,
title = {{CAME-Toolsuite meet2trade-- auf dem Weg zum Computer Aided Market Engineering}},
publisher = {Universitätsverlag Karlsruhe},
year = {2006},
editor = {.},
author = {Weinhardt, C. and van Dinther, C. and Grunenberg, M. and Kolitz, K. and Kunzelmann, M. and Mäkiö, J. and Weber, I. and Weltzien, H.},
abstract = {Die zunehmende Verbreitung von elektronischen Märkten aber auch die Fehlentwicklungen der letzten Jahre zeigen, dass eine strukturierte Vorgehensweise bei der Gestaltung und Implementierung elektronischer Märkte nicht nur sinnvoll, sondern auch notwendig ist. Ein wichtiger Schritt in diese Richtung wurde mit der im Rahmen des Projekts Electronic Financial Brokerage (EFB) entwickelten CAME-Toolsuite meet2trade gegangen. meet2trade unterstützt den gesamten Prozess des Market Engineering von der Planung und dem Design eines elektronischen Marktes bis hin zu seiner Einführung. Neben dem eigentlichen Client-Server-basierten Handelssystem als Systemkern wurden zu diesem Zweck innovative Dienste und Funktionalitäten integriert. Diese ermöglichen die einfache und schnelle Erstellung bzw. Konfiguration von Märkten mittels einer grafischen Oberfläche (Market Modelling Language, MML) und die anschließende Untersuchung dieser Märkte auf der Basis von Simulationen und Laborexperimenten (Simulationsumgebung AMASE, Experimentalsystem MES). Mit Hilfe der Toolsuite meet2trade wurden verschiedene Fragestellungen zum Bieterverhalten, zu Handelsfunktionalitäten und zu Marktregeln untersucht. Zur Analyse wurden sowohl experimentelle Verfahren als auch Simulationen eingesetzt. Das vorliegende Buch gibt einen umfassenden Überblick zu Fragestellungen und Ergebnissen dieses Forschungsprojekts, die auch in der Praxis von höchster Relevanz sind.}}
					

@Proceedings{CitationKey,
title = {{Group Decision and Negotiation (GDN) 2006, International Conference}},
year = {2006},
editor = {Seifert, Stefan and Weinhardt, Christof},
publisher = {Universitätsverlag Karlsruhe},
note = {ISBN: 3-86644-044-8},
month = {June 25--28},
url = {http://digbib.ubka.uni-karlsruhe.de/volltexte/1000004570},
abstract = {In the tradition of its preceding meetings, the seventh international conference “Group Decision and Negotiation (GDN) 2006” aims at bringing together researchers in the areas of Group Decisions, Negotiations, and Negotiation Support Systems. Participants share a common research focus on complex decision problems, which involve multiple stakeholders with their sometimes very different interests, as well as the different information, mind-sets, and emotions they bring to the bargaining table. The interdisciplinary research does not only seek to improve our understanding of group decision and negotiations, and market processes, but also to support decision makers, negotiators, and market engineers in achieving better outcomes.


The present proceedings outline the results presented at the conference. These range from new economic approaches to advances in information system design.}}
					

@Book{CitationKey,
title = {{E-Commerce--Netze, Märkte, Technologien }},
publisher = {Physica Verlag},
year = {2002},
editor = {.},
author = {Weinhardt, C. and Holtmann, C.},
pages = {294},
address = {Heidelberg},
note = {ISBN: 978-3790815252}}
					

@Book{CitationKey,
title = {{Prozeßorientiertes IT-Kostenmanagement in Banken, State of the art, Trends, Strategien}},
publisher = {Fachverlag Moderne Wirtschaft},
year = {1999},
author = {Weinhardt, C. and Koerner, M. and Bruhns, P. and Hübner, D. and Waschbüsch, C.},
pages = {160},
address = {Frankfurt am Main},
note = {ISBN-13: 978-3980581271}}
					

@Proceedings{CitationKey,
title = {{Informationssysteme in der Finanzwirtschaft}},
year = {1998},
editor = {Weinhardt, Christof and Meyer zu Selhausen, H. and Morlock, Martin},
address = {Berlin, Heidelberg},
publisher = {Springer},
note = {ISBN 13: 9783540650218}}
					

@Book{CitationKey,
title = {{Financial Engineering und Informationstechnologie--Innovative Gestaltung von Finanzkontrakten mit Informationsystemen}},
publisher = {Gabler Verlag},
year = {1995},
author = {Weinhardt, Christof},
pages = {266},
note = {ISBN: 978-3409131933},
abstract = {Eine der wesentlichen Leistungen der Finanzintermediäre besteht darin, Informationen zu verarbeiten. Es fällt auf, daß gerade in diesem so sehr von der Informationsverarbeitung geprägten Bereich der Einsatz neuer Methoden und Konzepte der Informations- und Kommunikationstechnologie (IuK) hinter dem des produzierenden Gewerbes zurücksteht. Um den aktuellen Herausforderungen des Wettbewerbs auf den Finanzmärkten, insbesondere einer verstärkten Kundenorientierung, gerecht zu werden, ist eine Umorientierung erforderlich. 
Christof Weinhardt analysiert die aktuelle Rolle der IuK im Bereich der Finanzdienstleistungen und zeigt auf, wie neue Methoden und Konzepte der Informationsverarbeitung genutzt und auch weiterentwickelt werden können, um ganzheitliche Lösungsansätze - insbesondere für die informationstechnische Unterstützung der Finanzberatung - gestalten können. Hierzu werden traditionelle und neue Paradigmen, Konzepte und Methoden der Informationstechnologie integriert.}}
					

@Book{CitationKey,
title = {{Künstliche Intelligenz in der Finanzberatung: Grundlagen, Konzepte, Anwendungen}},
publisher = {Gabler Verlag},
year = {1994},
author = {Kirn, S. and Weinhardt, C.},
note = {Mit begutachteten Beiträgen eines Workshops und eingeladenen Hauptbeiträgen (von H. Krcmar, H. J. Müller, F. Puppe, H. Rehkugler, M. M. Richter)},
abstract = {Die Finanzberatung gehört zu den Anwendungsbereichen, in denen die Verarbeitung von Informationen die zentrale Rolle spielt. Deshalb besitzen gerade Finanzdienstleister eine Schrittmacherfunktion bei der Unterstützung betrieblicher Prozesse durch Informationstechnologie. 
Dieses Buch zeigt anhand zahlreicher Fallbeispiele, wie aktuelle Probleme in der Finanzberatung mit Methoden der Künstlichen Intelligenz gelöst werden können. Darüber hinaus leistet es einen wichtigen anwendungsbezogenen Beitrag zur Methodendiskussion.}}
					

@Book{CitationKey,
title = {{Preisinformation in der Theorie der Ungleichheits- und Wohlfahrtsmessung}},
publisher = {Hain Verlag},
year = {1990},
author = {Weinhardt, Christof},
volume = {118},
pages = {251},
series = {Mathematical systems in economics},
address = {Frankfurt am Main},
note = {ISBN: 3-445-09821-2}}
					

@Article{CitationKey,
author = {Graefe, Andreas and Luckner, Stefan and Weinhardt, Christof},
title = {{Prediction markets for foresight}},
journal = {Futures},
year = {2009},
volume = {In Press, Corrected Proof},
doi = {http://dx.doi.org/10.1016/j.futures.2009.11.024},
abstract = {To navigate turbulent business environments, organizations have to develop foresight
capacities that enable them to anticipate probable futures, respond rapidly to emerging
changes, and support future oriented action. However, there are remaining barriers that
impede a wider implementation of foresight. In particular, the necessities to deal with the
future, anticipate change, enhance participation and reduce costs and complexity call for
new methods to improve current foresight activities. In this paper, we introduce
prediction markets to the field of foresight. Prediction markets are a structured approach
to collect and aggregate information from groups and have recently gained attention in
forecasting. Prediction markets go beyond simple forecasting and can contribute to
foresight by providing advantages in terms of continuous and real-time information
aggregation, motivation of participation and information revelation as well as costefficiency
and scalability. We suggest four promising fields of application for prediction
markets to enhance foresight: (1) continuous forecasting and environmental scanning, (2)
combining with deliberative approaches, (3) continuous idea generation and (4) expert
identification. We conclude by considering prediction markets as a nascent and promising
method for foresight and advocate for further research.}}
					

@Article{CitationKey,
author = {Borissov, N.; Neumann, D.; Weinhardt, C.},
title = {{Automated bidding in computational markets: An application in market-based allocation of computing services}},
journal = {Autonomous Agents and Multi-Agent Systems},
year = {2009},
month = {October},
note = {ISSN: 1387-2532 (Print), ISSN: 1573-7454 (Online)},
doi = {10.1007/s10458-009-9112-y},
url = {http://www.springerlink.com/content/41272l185u852475},
abstract = {Autonomous agents are widely applied to automate interactions in robotics, e.g. for selling and purchasing goods on eBay, and in financial markets, e.g. in the form of quote machines and algorithmic traders. Current research investigates efficient economic mechanisms that fully automate the provisioning and usage processes of Grid-based services. On the one hand, consumers want to allocate resources on demand for their various applications, e.g. data sharing, stream processing, email, business applications and simulations. On the other hand, providers of Grid services want to govern business policies to meet their utilization and profit goals. The above-mentioned processes are not manually manageable, however, because decisions need to be taken within milliseconds. Therefore, such processes have to be automated to minimize human interactions. Hence, market mechanisms and strategic behavior play important roles when it comes to achieving automated and efficient allocation of Grid services. The paper begins by presenting a framework for automated bidding, providing a methodology for the design and implementation of configurable bidding strategies. Second, it presents a novel bidding strategy based on a reinforcement learning technique. This strategy is designed to automate the bid generation processes of consumers and providers in various market mechanisms. Third, the behavior and convergence of the strategy is evaluated in a centralized Continuous Double Auction and a decentralized on-line machine scheduling mechanism against selected benchmark bidding strategies. Fourth, we define a bidding language for communicating consumer and provider preferences to the market as well as report back the match of the market-based allocation process.}}
					

@Article{CitationKey,
author = {Stößer, Jochen and Neumann, Dirk and Weinhardt, Christof},
title = {{Market-Based Pricing in Grids: On Strategic Manipulation and Computational Cost}},
journal = {European Journal of Operational Research (EJOR)},
year = {2010},
volume = {203},
pages = {464–475},
number = {2},
url = {http://dx.doi.org/10.1016/j.ejor.2009.07.033},
abstract = {Grid technologies and the related concepts of utility computing and cloud computing enable the dynamic sourcing of computer resources and services, thus allowing enterprises to cut down on hardware and software expenses and to focus on key competencies and processes. Resources are shared across administrative boundaries, e.g. between enterprises and/or business units. In this dynamic and inter-organizational setting, scheduling and pricing become key challenges. Market mechanisms show promise for enhancing resource allocation and pricing in grids. Current mechanisms, however, are not adequately able to handle large-scale settings with strategic users and providers who try to benefit from manipulating the mechanism. In this paper, a market-based heuristic for clearing large-scale grid settings is developed. The proposed heuristic and pricing schemes find an interesting match between scalability and strategic behavior.}}
					

@Article{CitationKey,
author = {Blau, Benjamin and van Dinther, Clemens and Conte, Tobias and Xu, Yongchun and Weinhardt, Christof},
title = {{How to Coordinate Value Generation in Service Networks--A Mechanism Design Approach}},
journal = {Business and Information Systems Engineering (BISE)},
year = {2009},
volume = {1},
pages = {343-356},
number = {5},
month = {October},
url = {http://dx.doi.org./10.1007/s12599-009-0070-3},
abstract = {The fundamental paradigm shift from traditional value chains to agile service value networks implies new economic and organizational challenges. As coordination mechanisms, auctions have proven to perform quite well in situations where intangible and heterogeneous goods are traded. Nevertheless traditional approaches in the area of multiattribute combinatorial auctions are not quite suitable to enable the trade of composite services. A flawless service execution and therefore the requester's valuation highly depends on the accurate sequence of the functional parts of the composition, meaning that in contrary to service bundles, composite services only generate value through a valid order of their components. 
We present an abstract model as a formalization of a service value network. The model comprehends a graph-based mechanism design to allocate multiattribute service offers within the network, to impose penalties for non-performance and to determine prices for complex services. The mechanism and the bidding language support various types of QoS attributes and their (semantic) aggregation. We analytically show that this variant is incentive compati-ble with respect to all dimensions of the service offer (quality and price). Furthermore we study the mechanism theoretically as well as on a simulation basis in order to analyze strategic behavior of service providers within service value networks.
}}
					

@Article{CitationKey,
author = {Weinhardt, Christof and Anandasivam, Arun and Blau, Benjamin and Borissov, Nikolay and Meinl, Thomas and Michalk, Wibke and Stößer, Jochen},
title = {{Cloud Computing--A Classification, Business Models, and Research Directions

}},
journal = {Business and Information Systems Engineering (BISE)},
year = {2009},
volume = {1},
pages = {391-399},
number = {5},
note = {ISSN: 1867-0202},
url = {http://dx.doi.org/10.1007/s12599-009-0071-2},
abstract = {Lately, a new computing paradigm has emerged: "Cloud Computing". It seems to be pro-moted as heavily as the "Grid" was a few years ago, causing broad discussions on the differ-ences between Grid and Cloud Computing. The first contribution of this paper is thus a de-tailed discussion about the different characteristics of Grid Computing and Cloud Computing. This technical classification allows for a well-founded discussion of the business opportunities of the Cloud Computing paradigm. To this end, this paper first presents a business model ontology for Clouds. It subsequently reviews and classifies current Cloud offerings in the light of this ontology. Finally, this paper discusses challenges that have to be mastered in order to make the Cloud vision come true and points to promising areas for future research.}}
					

@Article{CitationKey,
author = {Blume, M. and Luckner, S. and Weinhardt, C.},
title = {{Fraud Detection in Play-Money Prediction Markets}},
journal = {Information Systems and e-Business Management (ISeB)},
year = {2009},
doi = {http://dx.doi.org/10.1007/s10257-008-0103-3},
abstract = {Prediction markets are increasingly used to aggregate information on particular future events of interest such as elections, sports events, and Oscar winners. However, prediction markets are sensitive to manipulation and price distortions. In this paper, we show evidence for fraud in a play-money sports prediction market. In contrast to the often considered outcome manipulation in the context of political stock markets we were only looking for violations of our general terms and conditions, i.e. for traders creating multiple user accounts and trading against themselves in order to transfer cash from one account to another. We found evidence of suchlike coalitions and received complaints about it by annoyed traders. We discuss possible countermeasures in order to avoid or at least detect this kind of fraud in play-money prediction markets and present a tool which can be used to detect coalition building while operating a market.}}
					

@Article{CitationKey,
author = {Weinhardt, Christof and Anandasivam, Arun and Blau, Benjamin and Stößer, Jochen},
title = {{Business Models in the Service World}},
journal = {IEEE IT Professional, Special Issue on Cloud Computing},
year = {2009},
volume = {11},
pages = {28--33},
number = {2},
note = {ISSN: 1520-9202},
url = {http://dx.doi.org/10.1109/MITP.2009.21},
abstract = {With the rapid growth of Cloud Computing, the sharing of IT resources has become popular in commerce. However, the term Cloud Computing has not been clearly distinguished from other approaches like Grid or Voluntary Computing. Consequently, the benefits of this new concept is hardly to understand. In this paper we develop a conceptual framework to understand the products offered by the companies like Amazon or Google. We provide a criteria catalog to characterize Cloud Computing. Furthermore, the Cloud Business Ontology Model gives an overview how products can be classified. Based on the Ontology we establish a relation to current product offerings and pricing models.}}
					

@Article{CitationKey,
author = {Lamparter, S. and Ankolekar, A. and Oberle, D. and Studer, R. and Weinhardt, C.},
title = {{Semantic Specification and Evaluation of Bids in Web-based Markets}},
journal = {Electronic Commerce Research and Applications},
year = {2008},
volume = {7},
pages = {313-329},
number = {3},
url = {http://dx.doi.org/10.1016/j.elerap.2008.03.003},
abstract = {In recent years, electronic markets have gained much attention as institutions to allocate goods and services efficiently between buyers and sellers. By leveraging the Web as a global communication medium, electronic markets provide a platform that allows participants throughout the world to spontaneously exchange products in a flexible manner. However, ensuring interoperability and mutual understanding in such a highly dynamic and heterogenous environment can easily become very tricky, particularly if the services and goods involved are complex and described by multiple attributes. In this paper, we present a comprehensive ontology framework that allows the specification of bids for Web-based markets. By expressing utility function policies with a logic-based and standardized formalism, the framework enables a compact bid representation particularly for highly configurable goods and services while ensuring a high degree of interoperability. To facilitate matchmaking of offers and requests in the market, a method for evaluating bids based on logical reasoning is presented. In addition, as proof of concept, we show how the framework can be applied in a Web service selection scenario.}}
					

@Article{CitationKey,
author = {Weinhardt, Christof and Graefe, Andreas},
title = {{Long-Term Forecasting with Prediction Markets--A Field Experiment on Applicability and Expert Confidence }},
journal = {The Journal of Prediction Markets},
year = {2008},
volume = {2},
pages = {71-91},
number = {2},
month = {September},
note = {University of Buckingham Press},
url = {http://www.ingentaconnect.com/content/ubpl/jpm/2008/00000002/00000002/art00005}}
					

@Article{CitationKey,
author = {Neumann, D. and Stößer, J. and Weinhardt, C. and Nimis, J.},
title = {{A Framework for Commercial Grids -- Economic and Technical Challenges}},
journal = {Journal of Grid Computing},
year = {2008},
volume = {6},
pages = {325--347},
number = {3},
url = {http://www.springerlink.com/content/y045150756415850/},
abstract = {This paper argues that the technology of Grid computing has not yet been adopted in commercial settings due to the lack of viable business models. While in academia Grid technology has already been taken up, the sharing approach among non for-profit organizations is not suitable for enterprises. In this paper, the idea of a Grid market is taken up to overcome this Grid adoption gap. We propose a framework for building up a Grid market and identifies the associated economic and technical challenges. Based on this framework, we identify a
catalogue of possible market mechanisms which offer a promising fit to the Grid environment's characteristics and which may thus help to carry the idea of Grid markets from theory to practice.}}
					

@Article{CitationKey,
author = {Schnizler, B. and Neumann, D. and Veit, D. and Weinhardt, C.},
title = {{Trading Grid Services - A Multi-attribute Combinatorial Approach}},
journal = {European Journal of Operational Research (EJOR)},
year = {2008},
volume = {187},
pages = {943-961},
number = {3},
abstract = {The Grid is a promising technology for providing access to
distributed high-end computational capabilities. Thus, computational tasks can be performed spontaneously by other resources in the Grid that are not under the user's control. However, one of the key problems in the Grid is deciding which jobs are to be allocated to which resources at what time. In this context, the use of market mechanisms for scheduling and allocating Grid resources is a promising approach toward solving these problems. This paper proposes an auction mechanism for allocating and scheduling computer
resources such as processors or storage space which have multiple quality attributes. The mechanism is evaluated according to its economic and computational performance as well as its practical applicability by means of a simulation.}}
					

@Article{CitationKey,
author = {Burghardt, Matthias and Weinhardt, Christof},
title = {{Nonlinear pricing of e-market transaction services}},
journal = {International Journal of Electronic Business},
year = {2008},
volume = {6},
pages = {4-24},
number = {1},
doi = {http://dx.doi.org/10.1504/IJEB.2008.017342},
abstract = {A key element of the business structure for electronic markets is the design of price schedules for transaction services. Stock exchanges and transaction service providers around the world regard transaction fees not only as a major source of income but also as an incentive mechanism for investors. In this paper, we discuss the principles of nonlinear transaction fee schedules and present the results of a field experiment on investor order behavior. We find that the number and the volume of orders are influenced by the transaction fee schedule. Furthermore, the initial endowment of participants has an impact on the price elasticity of the demand for transaction services. The discussion highlights the need for a structured approach for price schedule design in the market engineering context.}}
					

@Article{CitationKey,
author = {Neumann, Dirk and Stößer, Jochen and Weinhardt, Christof},
title = {{Bridging the Adoption Gap--Developing a Roadmap for Trading in Grids}},
journal = {Electronic Markets},
year = {2008},
volume = {18},
pages = {65--74},
number = {1},
doi = {http://dx.doi.org/10.1080/10196780701797664},
abstract = {Grid computing describes a computing model that distributes processing across an administratively and locally dispersed infrastructure to create virtual supercomputers at low cost. However, currently Grids are mainly employed within enterprises to connect internal divisions and business units. This paper attempts to explain why Grid market initiatives have failed. The explanation mainly focuses on the object traded in Grid markets. What is needed to extend Grid technologies beyond company borders is a set of mechanisms that enable users to discover, negotiate and pay for the use of Grid services on demand. This paper derives a roadmap for the design of market mechanisms based on a solid understanding of the technical possibilities. This roadmap underlines the need for a catalogue of market mechanisms to increase the impact of Grid markets in commercial settings.}}
					

@Article{CitationKey,
author = {Luckner, S. and Weinhardt, C.},
title = {{How to Pay Traders in Information Markets? Results from a Field Experiment}},
journal = {Journal of Prediction Markets},
year = {2007},
volume = {1},
pages = {147-156},
number = {2},
abstract = {The results of recent studies on prediction markets are encouraging. Prior experience demonstrates that markets with different incentive schemes predicted uncertain future events at a remarkable accuracy. In this paper, we study the impact of different monetary incentives on prediction accuracy in a field experiment. In order to do so, we compare three groups of traders, corresponding to three treatments with different payment schemes, in a prediction market for the FIFA World Cup 2006. Somewhat surprisingly, our results show that performance-related payment schemes do not necessarily increase the prediction accuracy. Due to the risk aversion of traders the competitive environment in a rank-order tournament leads to the best results in terms of prediction accuracy.}}
					

@Article{CitationKey,
author = {Weinhardt, C. and Neumann, D. and Holtmann, C.},
title = {{Computer-aided Market Engineering}},
journal = {Communications of the ACM},
year = {2006},
volume = {49},
pages = {79},
number = {7},
url = {http://delivery.acm.org/10.1145/1140000/1139953/p79-weinhardt.pdf?key1=1139953&key2=0652920621&coll=portal&dl=ACM&CFID=65782166&CFTOKEN=28751308}}
					

@Article{CitationKey,
author = {Rolli, D. and Luckner, S. and H.Gimpel and Weinhardt, C.},
title = {{A Descriptive Auction Language}},
journal = {Electronic Markets},
year = {2006},
volume = {16},
pages = {51-62},
number = {1},
abstract = {
Electronic markets and especially online auctions gain more and more importance and a plethora of market mechanisms is emerging on the Internet. The great variety of trading rules hinders agents easily switching between different marketplaces and therefore fragments the overall market – supply and demand might fail to meet due to agents’ inability to interact with the same market mechanism. The problem can be overcome by a descriptive auction language (DAL) allowing for the machine-readable specification of arbitrary auction mechanisms. The implications are twofold: on the one hand a market engineer can coherently describe a mechanism by means of the language and automatically deploy it via an auction runtime environment and, on the other hand, a (software) agent can automatically deduce valid and reasonable actions from the description of a previously unknown auction mechanism.

}}
					

@Article{CitationKey,
author = {Sandrock, J. and Weinhardt, C.},
title = {{Geschäftsmodelle für E-Learning Anbieter: ein Framework für die strategische Planung}},
journal = {Zeitschrift für Betriebswirtschaft },
year = {2006},
volume = {ZfB-Special Issue 2/2006},
pages = {19-41 },
abstract = {The search for the right E-Learning business models is a strategic issue for E-Learning-companies’ management. But like any new concept, there is a certain extent of confusion and ambiguity. This article provides a review of the controversial discussion in an effort to derive a comprehensive framework built on the concepts of strategic management and recent business model research. The framework combines established and empirical valid methods of strategic management to derive normative statements for business model design. Furthermore, the formalised framework provides a simulation model to examine different strategic scenarios. }}
					

@Article{CitationKey,
author = {Weinhardt, C. and Weber, B. and Hendershott, T. and Neumann, D. and Schwartz, R.},
title = {{Preface to the Focus Theme Section: 'Financial Market Engineering'}},
journal = {Electronic Markets},
year = {2006},
volume = {16},
pages = {98-100},
number = {2},
url = {http://www.informaworld.com/10.1080/10196780600643506}}
					

@Article{CitationKey,
author = {Czernohous, C. and Fichtner, W. and Veit, D. and Weinhardt, C.},
title = {{Management Decision Support using Long-Term Market Simulation}},
journal = {Information Systems and e-Business Management (ISeB)},
year = {2003},
volume = {1},
pages = {405-423},
number = {4},
abstract = {In recent years Agent-based Computational Economics
(ACE) has become an increasingly important method in market
simulation. After liberalization of many former governmental owned or controlled industries the used operation research models are not longer sufficient to simulate market behavior due to individual action and increasing competition. Agent-based simulation appears to be an alternative approach considering also individual behavior and competition. Some short-term simulation approaches have shown promising results for the simulation in the domain of electricity markets. Picking up the desire for a long-term oriented simulation, this paper presents a basic agent-based model considering the investment decision within long-term planning of electricity markets. Additionally, regulatory agents are introduced as a third side in the market simulation to represent governmental decisions. This results in the definition of three types of agents representing electricity generating companies, consumers and governmental instances.}}
					

@Article{CitationKey,
author = {Weinhardt, C. and Holtmann, C. and Neumann, D.}
,
title = {{Market Engineering}}
,
journal = {Wirtschaftsinformatik}
,
year = {2003}
,
volume = {45}
,
pages = {635--640}
,
number = {6}}
					

@Article{CitationKey,
author = {Ströbel, M. and Weinhardt, C.},
title = {{The Montreal Taxonomy for Electronic Negotiations}},
journal = {Group Decision and Negotiation},
year = {2003},
volume = {12},
pages = {143-164},
number = {2},
doi = {http://dx.doi.org/10.1023/A:1023072922126},
abstract = {Research in the domain of electronic negotiations is a rather new and very interdisciplinary field, which gains more and more attention due to the industry hype and momentum regarding electronic commerce and electronic markets. Negotiations in a narrow sense (not taking into account simple forms such as ldquohit and takerdquo) have been identified as an advantageous coordination mechanism for the interaction of buyers and sellers in electronic markets that transcend the selling of commodities or uniform goods. Hence, support for negotiations may become a critical success factor for electronic markets, especially regarding the recent failures of many industrial ventures. This paper presents the Montreal Taxonomy, which allows not only for the exact characterisation and comparison of a broad variety of electronic negotiation designs and systems, ranging from auctions to bilateral bargaining tables, but could also lead towards a more structured approach for the design of electronic negotiations.}}
					

@Article{CitationKey,
author = {Veit, D. and Müller, J.P. and Weinhardt, C.},
title = {{Multidimensional Matchmaking for Electronic Markets }},
journal = {Journal of Applied Artificial Intelligence},
year = {2002},
volume = {16},
pages = {853-869},
number = {9-10},
abstract = {Matchmaking is the process of mediating demand and supply in markets based on profile information. In electronic marketplaces and in negotiations matchmaking plays a key role. The issue is to find the most appropriate agent for a task, the best bid in a multiattribute auction or the best present good for a request. In most real-world markets multidimensional matchmaking is required, i.e., the ability to combine different dimensions and sub dimensions of decision-making to define an over all relevance. This task requires the interplay of multiple matchmaking algorithms. Another central aspect is the possibility to design relevance computation processes for multiattribute objects easily. The realization of this issue makes multidimensional matchmaking processes to be easily integrated into industrial marketplace solutions.
The work described in this paper aims on general multidimensional matchmaking objectives. These matchmaking objectives are implemented and deployed for industrial applications. The main contributions of this paper are (i) the definition of multidimensional matchmaking in general (ii) an implementation of configurable multidimensional matchmaking as a application dependent EJB   component which is configurable using XML, (iii) the definition and implementation of different relevance (i.e. distance) functions for general usage and specific domains (iv) the description of a process guiding application developers to design matchmaking applications (enterprise java beans) (v) a report on experiences deploying the EJB matchmaker for the human resource area within a large-scale agent-based software.
Matchmaking is the process of mediating demand and supply in markets based on profile information. In electronic marketplaces and in negotiations matchmaking plays a key role. The issue is to find the most appropriate agent for a task, the best bid in a multiattribute auction or the best present good for a request. In most real-world markets multidimensional matchmaking is required, i.e., the ability to combine different dimensions and sub dimensions of decision-making to define an over all relevance. This task requires the interplay of multiple matchmaking algorithms. Another central aspect is the possibility to design relevance computation processes for multiattribute objects easily. The realization of this issue makes multidimensional matchmaking processes to be easily integrated into industrial marketplace solutions.
The work described in this paper aims on general multidimensional matchmaking objectives. These matchmaking objectives are implemented and deployed for industrial applications. The main contributions of this paper are (i) the definition of multidimensional matchmaking in general (ii) an implementation of configurable multidimensional matchmaking as a application dependent EJB   component which is configurable using XML, (iii) the definition and implementation of different relevance (i.e. distance) functions for general us}}
					

@Article{CitationKey,
author = {Nauert, Ralf and Weinhardt, Christof},
title = {{Zur Richtlinie 1999/93/EG des Europäischen Parlamtens und des Rates über gemeinschaftliche Rahmenbedingungen für elektronische Signaturen}},
journal = {Wirtschaftsinformatik},
year = {2000},
volume = {42},
pages = {553-555},
number = {6},
url = {http://www.wirtschaftsinformatik.de/pdf/wi062000_553.pdf}}
					

@Article{CitationKey,
author = {Gomber, P. and Schmid, C. and Weinhardt, C.},
title = {{Pricing in Multi-Agent Systems for Transportation Planning}},
journal = {Journal of Organizational Computing and Electronic Commerce},
year = {2000},
volume = {10},
pages = {271-280},
number = {4},
url = {http://dx.doi.org/10.1207/S15327744JOCE1004_05},
abstract = {In electronic commerce, the intraorganizational coordination of directly responsible units, for example profit centers or firms within an affiliated group, is of increasing importance. These organizational units can be modeled within a multiagent system (MAS), an interconnection of autonomous information systems. In this article, we investigate coordination mechanisms for MAS in decentralized transportation planning that ensure efficient allocation of scarce resources on the basis of local planning processes. In the domain of transportation, planning problems are characterized by large amounts of data, limitations of time for planning, and the intractability of computational problems. Auctions as market-like coordination mechanisms are discussed with respect to the trade-off between theoretical evidence on the quality of the allocation and computational tractability. Therefore, 2 pricing mechanisms are investigated, the generalized Vickrey auction and pricing per column. }}
					

@Article{CitationKey,
author = {Weinhardt, C. and Buhl, H.-U.},
title = {{Informationssysteme in der Finanzwirtschaft (Editorial) }},
journal = {Wirtschaftsinformatik},
year = {1999},
volume = {99},
pages = {103-104},
number = {4}}
					

@Article{CitationKey,
author = {Gomber, P. and Schmidt, C. and Weinhardt, C.},
title = {{Efficiency, Incentives and Computational Tractability in MAS-Coordination }},
journal = { International Journal of Cooperative Information Systems },
year = {1998},
volume = {8},
pages = {1-14},
number = {1},
url = {http://dx.doi.org/10.1142/S0218843099000022},
abstract = {This paper focuses on market-like coordination mechanisms in multi-agent systems, with applications to business planning. Several fundamental criteria are derived in order to evaluate market-like coordination mechanisms. The central criterion is the efficient allocation of jobs to agents. Assuming a relationship between classes of operational planning problems and certain coordination mechanisms, business planning problems are classified on the basis of their relevant attributes. Coordination mechanisms for each of the classes are then introduced on the basis of auction theory and investigated with respect to the trade off between efficiency and computational tractability. All of the mechanisms prove to have a common basis: the Vickrey Auction. 
}}
					

@Article{CitationKey,
author = {Weinhardt, C. and Schleth, J.P. and Krause, R. and Bilitewski, E.},
title = {{Banken, neue Medien und virtuelle Strukturen - Rahmenbedingungen, Trends und Strategien}},
journal = {Zeitschrift für Betriebswirtschaft},
year = {1997},
volume = {67},
pages = {1-31},
number = {Ergänzungsheft 2},
abstract = {Discussion Paper, erschienen in: ZfB-Ergänzungsheft, Finanzierung}}
					

@Article{CitationKey,
author = {Weinhardt, C. and Mack, B.},
title = {{Verteiltes Problemlösen in der Finanzberatung: Ein portfoliotheoretischer Ansatz }},
journal = {KI-Künstliche Intelligenz},
year = {1995},
volume = {3},
pages = {46-55},
abstract = {In der KI-Forschung kommt der Anwendung neuer Informations- und Kommunikationstechnologien zur Lösung betriebswirtschaftlicher Problemstellungen eine wachsende Bedeutung zu. Für eine so verstandene anwendungsorientierte KI-Forschung ist die Umsetzung theoretischer und methodischer Grundlagen aus den beiden Kerndisziplinen, Künstliche Intelligenz und Betriebswirtschaft, erforderlich. Neben diesem integrativen Aspekt bietet sich häufig die Möglichkeit oder auch die Notwendigkeit der Erweiterung, Ergänzung oder Revision wissenschaftlicher Erkenntnisse dieser Kerndisziplinen. 
Dieser interdisziplinäre Charakter steht im Mittelpunkt des vorliegenden Beitrags: Durch Verbindung ökonomischer und spieltheoretischer Prinzipien der Neuen Institutionenökonomie (NI) mit informationstechnologischen Konzepten der Verteilten Künstlichen Intelligenz (VKI) werden die theoretischen Grundlagen und die formale Spezifikation eines Koordinationsmodells in einem Multi-Agenten-System (MAS) zum verteilten Problemlösen in der Finanzberatung dargestellt. 
}}
					

@Article{CitationKey,
author = {Weinhardt, C. and Gomber, P.},
title = {{Domänenunabhängige Koordinationsmechanismen für die dezentrale betriebliche Planung}},
journal = {IM Information Managment},
year = {1996},
volume = {1},
pages = {6-16},
abstract = {In der betrieblichen Planung stellt sich das komplexe Problem der optimalen Allokation von Ressourcen, zum Beispiel hinsichtlich einer effizienten Zuordnung von Aufträgen auf knappe Kapazitäten mehrerer Organisationseinheiten. Unabhängig von der Anwendungsdomäne wird aus ökonomischer Sicht untersucht, inwieweit verschiedene Auktionsformen als marktliche Koordinationsmechanismen zur Modellierung eines dezentralen Planungsprozesses geeignet sind, und inwieweit ihre Implementation in Multi-Agenten-Systeme diesen Prozeß verbessern kann.}}
					

@Article{CitationKey,
author = {Weinhardt, C. and Gomber, P. and Schmidt, C.},
title = {{Synergie und Koordination in dezentral planenden Organisationen }},
journal = {Wirtschaftsinformatik},
year = {1996},
volume = {38},
pages = {299-307 },
number = {3},
abstract = {Dynamische Märkte, hoher Innovationsdruck und ein ausgeprägter Zeitwettbewerb - vor diesem Hintergrund suchen Unternehmen nach neuen Organisationsformen, die sich in dezentralen innerbetrieblichen Strukturen und dem Versuch, Kernkompetenzen über Unternehmensgrenzen hinweg zu bündeln, konkretisieren. Unabhängig davon, auf welcher dieser Ebenen autonome Organisationseinheiten kooperieren, geht es vor allem darum, daß Synergiepotentiale ausgeschöpft werden, und jeder Kooperationspartner dabei einen individuellen Vorteil erzielen kann - eine Aufgabe, die marktliche Koordination nahelegt. Multi-Agenten-Systeme (MAS) sind in der Lage, solche Organisationsstrukturen abzubilden, die lokalen Interessen der autonomen Einheiten zu wahren und für ein globales Ziel zu koordinieren. Anhand eines detaillierten Anforderungskatalogs an marktliche Mechanismen wird in dieser Arbeit, aufbauend auf einer Analyse einfacher Auktionen, ein Koordinationsmechanismus für MAS entwickelt. Diese mehrstufige erweiterte Vickrey Auktion (MEVA) fördert die Bildung von Kooperationen über geeignete Anreizstrukturen für die Nutzung von Synergien}}
					

@Article{CitationKey,
author = {Weinhardt, C. and Kirn, S. and Gomber, P.},
title = {{KI-Methoden in der Finanzwirtschaft: Grundlegende Fragen, Stand der Forschung, Einsatzpotentiale}},
journal = {Themenheft "KI-Methoden in der Finanzwirtschaft", KI-Künstliche Intelligenz},
year = {1996},
volume = {4},
pages = {8-17},
abstract = {Die vorliegende Arbeit gibt einen Überblick über die Anwendungsdomäne der Finanzwirtschaft aus Sicht der KI sowie über das Lösungspotential der KI für praktische Anwendungen in diesem Bereich. Ausgehend von einer Strukturierung des betriebswirtschaftlichen Fachgebietes werden die wichtigsten dort informationstechnisch zu unterstützenden Problemfelder aufgezeigt und den entsprechenden finanzwirtschaftlichen Teilaufgaben zugeordnet. Durch eine weitere Zuordnung von KI-Methoden zu den genannten IT-Problemfeldern wird schließlich versucht, das Lösungspotential besonders relevanter KI-Methoden für die zuvor angesprochenen Aufgabenbereiche aus dem Gebiet der Finanzwirtschaft darzustellen. Daneben wird anhand einer Literaturanalyse der aktuelle Stand des KI-Einsatzes in der Domäne präsentiert und kritisch diskutiert.}}
					

@Article{CitationKey,
author = {Weinhardt, C. and Gomber, P. and Schmidt, C.},
title = {{Elektronische Märkte für die dezentrale Transportplanung}},
journal = {Wirtschaftsinformatik},
year = {1997},
volume = {39},
pages = {137 - 145},
number = {2},
abstract = {Zunehmende internationale Konkurrenz, eine wachsende Planungskomplexität, die Verkürzung der Planungszeiträume, sowie die geänderten Tarifbedingungen im Transportwesen, speziell im Straßengüterverkehr, verlangen nach neuen, innovativen Problemlösungsmethoden insbesondere für die Fahrzeugeinsatzplanung. Bei der Lösung von Planungsproblemen sind häufig mehrere Organisationseinheiten beteiligt: einzelne Fahrzeuge, Frachtführer, Speditionen gegebenenfalls mit verschiedenen Niederlassungen, Konzernspeditionen oder andere Formen von Unternehmenszusammenschlüssen mehrerer Transportdienstleister. Multi-Agenten-Systeme (MAS) stellen das notwendige Instrumentarium bereit, um lokale Kompetenzen für ein globales Ziel, hier eine effiziente Allokation der Transportkapazitäten, zu nutzen. In dem vorliegenden Beitrag werden Koordinationsmechanismen für einen elektronischen Markt zur dezentralen Lösung transportwirtschaftlicher Planungsprobleme analysiert und gegebenenfalls erweitert. Dabei erweist sich die Vickrey Auction als gemeinsame Grundlage der in dieser Arbeit vorgestellten Koordinationsmechanismen.}}
					

@Inbook{CitationKey,
author = {van Dinther, Clemens and Blau, Benjamin and Conte, Tobias and Weinhardt, Christof},
title = {{Designing Auctions for Coordination in Service Networks}},
booktitle = {Service Science},
publisher = {Springer},
year = {2010},
editor = {Demirkan, Haluk and Spohrer, James C. and Krishna, Vikas},
series = {Research and Innovations (SSRI) in the Service Economy, The Advancement of Service Systems},
note = {ISSN: 1865-4924 (forthcoming)}}
					

@Inproceedings{CitationKey,
author = {Michalk, Wibke and Stoesser, Jochen and Blau, Benjamin and Weinhardt, Christof},
title = {{Risk-based decision support in service value networks}},
booktitle = {Proceedings of the 43rd Hawaii International Conference on System Science (HICSS)},
year = {2010},
address = {Koloa, Kauai, Hawaii},
abstract = {The current trend towards dynamic and highly scalable
service provisioning fosters the rise of Software as a Service
(SaaS) platforms and so called Compute Clouds. The
on-demand provisioning of services gains more and more
influence. For offering enriched services that are capable
of performing complex tasks, the dynamic composition of
such services becomes important. In order to enable the
collaboration between different service providers, technical
and economic preliminaries have to be made. This work
will cover economic considerations from the viewpoint of
a service provider. Therefore, the concept of Service Value
Networks is presented and an agreement network as underlying
legal structure is illustrated. Finally, an approach that
enables a service provider to select the risk-minimal combination
of contracts is elaborated and discussed.}}
					

@Inproceedings{CitationKey,
author = {Fluhr, Jonas and Ahlert, Klaus-Henning and Weinhardt, Christof},
title = {{A Stochastic Model for Simulating the Availability of Electric Vehicles to the Power Grid}},
booktitle = {Proceedings of the 43rd Hawaii International Conference on System Science (HICSS-43)},
year = {2010},
address = {Hawaii, USA}}
					

@Inproceedings{CitationKey,
author = {Wagener, Martin and Kundisch, Dennis and Riordan, Ryan and Rabhi, Fethi and Weinhardt, Christof},
title = {{Mispricing and Exchange Market Systems: The Effect of Infrastructure Upgrades}},
booktitle = {Proceedings of the Forty-Third Annual Hawaii International Conference on System Sciences},
year = {2010},
address = {Koloa, Kauai, Hawaii},
pages = {259-269},
editor = {Ralph H. Sprague},
publisher = {IEEE Computer Society}}
					

@Inproceedings{CitationKey,
author = {Conte, Tobias and Blau, Benjamin and Satzger, Gerhard and van Dinther, Clemens and Weinhardt, Christof},
title = {{Rewarding Contribution to Service Network Formation}},
booktitle = {Proceedings of the 1st INFORMS International Conference on Service Science (ICSS09)},
year = {2009},
address = {Hong Kong, China},
month = {August},
note = {Paper 225}}
					

@Inproceedings{CitationKey,
author = {Adam, Marc T.P. and Gamer, Matthias and Hey, Stefan and Ketter, Wolfgang and Weinhardt and Christof},
title = {{Measuring the Impact of Emotions on Decision-Making in Electronic Markets: A Physio-Economic Approach}},
booktitle = {Group Decision and Negotiation (GDN) 2009},
year = {2009},
address = {Toronto, Canada},
pages = {193-196}}
					

@Inproceedings{CitationKey,
author = {Stathel, Stephan and Luckner, Stefan and Teschner, Florian and Weinhardt, Christof and Reeson, Andrew and Whitten, Stuart},
title = {{AKX – An Exchange for Predicting Water Dam Levels in Australia }},
booktitle = {Proceedings of the 4th International Symposium on Information Technologies in Environmental Engineering},
year = {2009},
pages = {78-90},
month = {May},
address = {Thessaloniki, Greece},
url = {http://dx.doi.org/10.1007/978-3-540-88351-7}}
					

@Inproceedings{CitationKey,
author = {Borissov, Nikolay and Brunner, René and Neumann, Dirk and Freitag, Felix and Navarro, Leandro and Weinhardt, Christof},
title = {{Fostering Efficiency of Computational Resource Allocation - Integrating Information Services into Markets}},
booktitle = {Proceedings of the 17th European Conference on Information Systems (ECIS’ 09)},
year = {2009},
address = {Verona, Italy},
pages = {2048-2059},
month = {June}}
					

@Inproceedings{CitationKey,
author = {Anandasivam, A. and Neumann, D. and Weinhardt, C.},
title = {{Billing resources in scientific Grid networks}},
booktitle = {Proceedings of the Cracow Grid Workshop 2008},
year = {2008},
pages = {253-260},
key = {cgw_btg_08}}
					

@Inproceedings{CitationKey,
author = {Stathel, Stephan and Luckner, Stefan and Weinhardt, Christof},
title = {{Service Innovation via Information Markets}},
booktitle = {17th Annual Frontiers in Service Conference},
year = {2008},
address = {Washington D.C., USA},
pages = {89}}
					

@Inproceedings{CitationKey,
author = {Luckner, Stefan and Weinhardt, Christof},
title = {{Arbitrage Opportunities and Market-Making Traders in Prediction Markets}},
booktitle = {IEEE Joint Conference on E-Commerce Technology (CEC '08) and Enterprise Computing, E-Commerce and E-Services (EEE '08)},
year = {2008},
address = {Washington D.C., USA},
abstract = {Prediction markets are a promising approach for predicting uncertain future events and developments. These markets will work well if they are efficient and in efficient markets, one does not expect arbitrage opportunities to be persistent. This paper therefore studies whether pure arbitrage opportunities existed in a sports prediction market. Moreover, market liquidity can become an issue in prediction markets since new information is potentially not immediately reflected in trading prices and traders might also lose interest in the markets if they are illiquid. This paper therefore analyzes whether traders try to exploit illiquidity by taking on the role of market makers in prediction markets.  
Our analysis of a sports prediction market for the FIFA World Cup 2006 shows that prediction markets also appear to be efficient in the sense that there are few substantial arbitrage opportunities available. Furthermore, we find that market markers play an important role in prediction markets. They serve as liquidity providers and allow for continuous trading. 
}}
					

@Inproceedings{CitationKey,
author = {Blau, Benjamin and Lamparter, Steffen and Neumann, Dirk and Weinhardt, Christof},
title = {{Planning and Pricing of Service Mashups}},
booktitle = {IEEE Joint Conference on E-Commerce Technology (CEC '08) and Enterprise Computing, E-Commerce and E-Services (EEE '08)},
year = {2008},
address = {Washington D.C., USA},
month = {July},
abstract = {Today's development and provision of commercially used Web Services has shifted from providing static and predefined functionality to highly configurable services that can be dynamically combined by customers. This new form of composed services called service mashups integrate functionality of multiple sub-services from decentralized providers. Consequently this leads to a high configuration complexity and presents new challenges in the field of planning and pricing of service offerings such as validation of service configurations as well as combinations, and price determination of service mashups. Facing these challenges this paper presents an ontology for describing technical as well as economic interdependencies between services and shows how planing and pricing algorithms for dynamic Web scenarios can be implemented based on this ontological knowledge. As proof of concept we present the implementation of a Service Mashup Planner and show how this tool can be used to construct complex services considering technical as well as economic service aspects.}}
					

@Inproceedings{CitationKey,
author = {Adam, Marc T.P. and Gnutzmann, Hinnerk and Weinhardt, Christof},
title = {{The Impact of Bidding Fees on Auction Fever - Research Proposal for a Physio-Economic Experiment}},
booktitle = {Group Decision and Negotiation (GDN) 2008},
year = {2008},
address = {Coimbra, Portugal},
pages = {213-214}}
					

@Inproceedings{CitationKey,
author = {Blau, Benjamin and Michalk, Wibke and Neumann, Dirk and Weinhardt, Christof},
title = {{Provisioning of Service Mashup Topologies}},
booktitle = {Proceedings of the 16th European Conference on Information Systems (ECIS’ 08)},
year = {2008},
address = {Galway, Ireland},
editor = {Golden, W. and  Acton, T. and Conboy, K. and van der Heijden, H. and Tuunainen, V.},
month = {June},
note = {ISBN13: 978-0-9553159-2-3},
abstract = {Service-orientation technology has shifted from an innovation and research environment to a commercially established paradigm. Consequently, new challenges in the field of service descriptions and market mechanisms for pricing and service allocation rise. In modern eCommerce there is a strong trend towards the provision of Web services that are highly configurable in order to provide capabilities for customizing and to meet individualized business requirements. However, comprehensive capabilities for customizing result in a high complexity of different configurations and Web service instances. We present an ontology-based concept which is part of a tool to support providers of services facilitating a mashed-up bundle of sub-services in the configuration and composition process. Based on modeled sub-service structures we provide an application of a path auction with a Vickrey-Clarke-Groves and a Low Payment Mechanism to determine the overall price of a service mashup. We simulate and evaluate proposed path auctions using different graph topologies and bid strategies.}}
					

@Inproceedings{CitationKey,
author = {Adam, Marc T.P. and Hagenau, M. and Neumann, D. and Weinhardt, C.},
title = {{Emotions in Electronic Auctions - A Physio-Economic Approach on Information Systems}},
booktitle = {Proceedings of the 16th European Conference on Information Systems (ECIS’ 08)},
year = {2008},
address = {Galway, Ireland},
pages = {315-325},
abstract = {Though auctions show a prevailing dominance in electronic markets, our understanding of how auctions work on human behaviour is still rather limited. In this paper we analyse the impact of emotional processes on the decision making of human agents in electronic auctions. The analysis is based on a physio-economic study, in which human agents take part in a Dutch auction experiment, while their physiological parameters are recorded simultaneously. Parameters evaluated in this study are the electrodermal activity and the heart rate of the experiment participants. Based on the physiological results, we conclude that human agents tend to cognitively set a price at which they want to end the auction, but once they reach that specific price, they are tempted due to emotional processes to wait a little longer in order to increase their nominal payoff. Further we argue that the adaption of psychophysiological methodologies is not limited to mechanism design, but can be of considerable assistance for successful design of  nformation systems in general.}}
					

@Inproceedings{CitationKey,
author = {Cardeneo, A. and van Dinther, C. and Furmans, K. and Weinhardt, C.},
title = {{Offene getaktete robuste multimodale Dienstleistungsnetze}},
booktitle = {13. Magdeburger Logistiktagung Netzwerkplanung},
year = {2008},
volume = {1},
pages = {73-92},
abstract = {Der Beitrag stellt einen Planungsansatz und Anreizsysteme für offene Logistiknetzwerke vor, durch deren Kombination Effizienzsteigerungen und Verkehrsverlagerungen bewirkt werden sollen. Die Forschungsarbeiten werden im Rahmen des BMWi-Forschungsvorhabens „LogoTakt“ durchgeführt.}}
					

@Inproceedings{CitationKey,
author = {Riordan, Ryan and Blau, Benjamin and Weinhardt, Christof and Neumann, Dirk},
title = {{Collaborative Continuous Service Engineering - A Case Study in a Financial Service Environment}},
booktitle = {Proceedings of the 41st Hawaii International Conference on System Sciences (HICSS)},
year = {2008},
month = {January},
address = {Waikoloa, Big Island, Hawaii},
abstract = {We present a methodology to engineer services in real-time information environments. We evaluate, combine and enrich traditional techniques and methodologies such as New Product Development and Adaptive Software Development in order to support the development and continuous improvement of information services.  Our methodology is based upon the financial service environment. It is specific enough to be applicable in the field of finance and general enough to be applied broadly in information services development.}}
					

@Inproceedings{CitationKey,
author = {Block, C. and Neumann, D. and Weinhardt, C.},
title = {{A Market Mechanism for Energy Allocation in Micro-CHP Grids}},
booktitle = {Proceedings of the 41st Hawaii International Conference on System Sciences (HICSS)},
year = {2008},
pages = {172-172},
month = {Jan.},
abstract = {Achieving a sustainable level of energy production and consumption is one of the major challenges in our nowadays society. This paper contributes to the objective of increasing energy efficiency by introducing a market mechanism that facilitates the efficient matching of energy (i.e. electricity and heat) demand and supply in Micro Energy Grids. More precisely we propose a combinatorial double auction mechanism for the allocation and pricing of energy resources especially taking into account the specific requirements of energy producers and consumers. We describe the potential role of decentralized micro energy grids and their coupling to the large scale power grid. Furthermore we introduce an emergency fail over procedure that keeps the micro energy grid stable even in cases where the auction mechanism fails. As the underlying energy allocation problem itself is NP-hard, we derive a fast heuristic for finding efficient supply and demand allocations. In addition we show the applicability of this approach through numerica.}}
					

@Incollection{CitationKey,
author = {Kersten, G.E. and Chen. E. and Neumann, D. and Vahidov, R. and Weinhardt, C.},
title = {{On Comparison of Mechanisms of Economic and Social Exchanges}},
booktitle = {Negotiation and Market Engineering},
publisher = {Springer},
year = {2008},
editor = {Gimpel, H. and Jennings, N.R. and Kersten, G. and Ockenfels, A. and Weinhardt, C.},
series = {Lecture Notes in Business Information Processing (LNBIP)},
chapter = {1},
pages = {16-43},
abstract = {An e-market system is a concrete implementation of a market institution; it embeds one or more exchange mechanisms. E-market systems are also information systems which are information and communication technologies artifacts. This work puts forward an argument that the study of e-markets must incorporate both the behavioral economics as well as the information systems perspectives. To this end the paper proposes a conceptual framework that integrates the two. This framework is used to formulate a model, which incorporates the essential features of exchange mechanisms, as well as their implementations as is artefacts. The focus of attention is on two classes of mechanisms, namely auctions and negotiations. They both may serve the same purpose and their various types have been embedded in many e-market systems.}}
					

@Inproceedings{CitationKey,
author = {Stößer, J. and Neumann, D. and Weinhardt, C.},
title = {{Market-Based Pricing in Grids: On Strategic Manipulation and Computational Cost}},
booktitle = {Journal of AIS Sponsored Theory Development Workshop},
year = {2007},
address = {Montreal, Canada}}
					

@Inproceedings{CitationKey,
author = {Graefe, A. and Luckner, S. and Weinhardt, C.},
title = {{Prediction Markets - A Chance for Process-based and Socially-embedded Organizational Foresight}},
booktitle = {3rd International Conference on Organisational Foresight},
year = {2007},
abstract = {Nowadays, organizations are operating in an increasingly complex and unpredictable environment which makes it impossible to cope with future potentials, challenges, and risks by thinking of foresight as a purely technical and analytical activity. Thus, recent literature has emphasized the need to implement organizational foresight as a more human-centred and ongoing activity. However, there is a lack of methods and instruments that would truly enable socially-embedded and process-based foresight. In this paper, we discuss how prediction markets may meet these requirements, especially in terms of continuity, participation, and cost-efficiency. In particular, we identify three main fields of application for prediction markets to enhance current organizational foresight: (1) continuous monitoring and action triggering, (2) enhancing traditional foresight instruments, and (3) idea generation and expert identification. Finally, although prediction markets seem to be a promising approach for organizational foresight, we address remaining research questions that have to be answered before applying prediction markets on a large.}}
					

@Inproceedings{CitationKey,
author = {Neumann, Dirk and Block, Carsten and Weinhardt, Christof and Karabulut, Yücel},
title = {{Knowledge-Driven Selection of Market Mechanisms in E-Procurement}},
booktitle = {Proceedings of the 15th European Conference on Information Systems (ECIS’ 07)},
year = {2007},
address = {St. Gallen, Switzerland},
pages = {143-154},
month = {June},
abstract = {The variety of procurement mechanisms present in the nowadays e-procurement landscape ranging from electronic catalogue systems over e-negotiations to e-auctions, points at the fact that there exists no single best solution for all sourcing activities. Each mechanism rather has certain advantages and disadvantages. The discipline of economics has traditionally been devoted to the study of markets and market mechanisms. The fundamental lesson learned from economics is that even small changes in the exchange mechanisms can have considerable impact on the outcome. Stated differently, if the market engineer  intends  to  attain  a  certain  mechanism  outcome  (e.g.,  efficiency,  fairness,  revenue maximization), he can define the mechanism in a way that it induces the right incentives for market participants  to  act  as  desired  in  order  to  achieve  the  envisioned  outcome.  Unfortunately,  a comprehensive system that combines all relevant design aspects into one single knowledge-based decision  support  system  is  missing.  This  paper  introduces  such  a  system,  which  can  capture theoretical  and  empirical  results.  It  also  supports  the  design  of  procurement  mechanisms  by prescribing mechanism formats using an adapted case-based reasoning algorithm. The knowledge-
based system, KMS, is implemented in a web application as a proof-of-concept.}}
					

@Inproceedings{CitationKey,
author = {Neumann, D. and Stößer, J. and Weinhardt, C.},
title = {{Bridging the Grid Adoption Gap – Developing a Roadmap for Trading Grids}},
booktitle = {20th Bled eConference, Merging and Emerging Technologies, Processes, and Institutions},
year = {2007},
month = {June 4-6},
address = {Bled, Slovenia},
url = {http://domino.fov.uni-mb.si/proceedings.nsf/0/993826a96233b8b4c12572ee00774ec5/$FILE/38_Neumann.pdf},
abstract = {This paper argues that the technology of Grid computing has not yet been adopted by enterprises due to the lack of viable business models. While in academia, Grid technology has already been taken up, the sharing approach among non for-profit organizations is not suitable for enterprises. In this paper idea of a Grid market to overcome the adoption gap is taken up. Although, this idea is not new all proposals had been made by computer scientists unaware of economic market mechanisms or by economists being unaware of the technical possibilities. This paper is unique as it derives an economically sound set of market mechanisms based on a solid understanding of the technical possibilities.}}
					

@Inproceedings{CitationKey,
author = {Anandasivam, A. and Neumann, D. and Weinhardt, C.},
title = {{Rightsizing of Incentives for collaborative e-Science Grid Applications with TES}},
booktitle = {20th Bled eConference, Merging and Emerging Technologies, Processes, and Institutions},
year = {2007},
pages = {219-229},
address = {Bled, Slovenia},
url = {http://domino.fov.uni-mb.si/proceedings.nsf/Proceedings/56FB8BDAA46FEA7CC12572EE0079D05B/$File/18_Anandasivam.pdf},
abstract = {The particle physics community is sharing its resources over a Grid network. Currently resources are used on availability. But there is no fair allocation considering the importance or the private value of a job. Researchers are using Grid resources regardless of whether others need them more urgently. Furthermore, they do not even provide their own resources as they do not have an incentive for sharing them. Researchers are demanding a Grid infrastructure where an incentive mechanism is implemented. This will support a fair allocation of resources. Incentives can be provided by using money. But one constraint is that no real money should be involved for billing the resources. In this paper, a mechanism called Token Exchange System (TES) is proposed.  Considering the requirements from the particle physics community this mechanism combines the advantages of reputation and payment mechanism in one coherent system to
realize a fair allocation. It enables to build up a Grid infrastructure with an incentive mechanism which is scalable, incentive-compatible and does not require a face-to-face agreement like the current system.}}
					

@Inproceedings{CitationKey,
author = {Weinhardt, C. and Schnizler, B. and Luckner, S.},
title = {{Market Engineering}},
booktitle = {Group Decision and Negotiation (GDN) 2007},
year = {2007},
address = {Montreal, Canada},
editor = {Kersten, G. E. and Rios, J. and Chen, E.}}
					

@Inproceedings{CitationKey,
author = {Kolitz, Klaus and Block, Carsten and Weinhardt, Christof},
title = {{meet2trade: An Electronic Market Platform and  Experiment System}},
booktitle = {Group Decision and Negotiation (GDN) 2007},
year = {2007},
address = {Montreal, Canada},
editor = {Kersten, G. E. and Rios, J. and Chen, E.},
abstract = {The development of new electronic markets is challenging, since many factors influence the market outcomes and hence the markets’ success. Even worse, a fundamental lesson learned from economics is that details matter: small changes in market design can have a significant impact on the behavior of the market participants and thus on the achieved outcomes. Consequently a well structured process for design, implementation, testing and maintenance of markets is required. meet2trade is a software tool suite designed to systematically support each step of such a Market Engineering (ME) process. This paper presents the generic trading platform meet2trade that enables users to individually configure their own electronic markets, to run them on the integrated auction server, and to evaluate them using the built-in full-featured lab experiment system.}}
					

@Inproceedings{CitationKey,
author = {Chen, E. and Kersten, G. and Neumann, D. and Vahidov, R. and Weinhardt, C. and Yu, B.},
title = {{A Framework for E-market System Assessment and Design}},
booktitle = {Group Decision and Negotiation (GDN) 2007},
year = {2007},
address = {Montreal, Canada},
editor = {Kersten, G. E. and Rios, J. and Chen, E.}}
					

@Inproceedings{CitationKey,
author = {Neumann, D. and Schnizler, B. and Weber, I. and Weinhardt, C.},
title = {{Second Best Combinatorial Auctions - The Case of the Pricing Per Column Mechanism}},
booktitle = {Proceedings of the 40th Annual Hawaii International Conference on System Sciences (HICSS)},
year = {2007},
abstract = {One of the main contributions of classical mechanism design is the derivation of the VCG mechanisms. The class of VCG mechanisms are the only mechanisms that are strategy-proof and more importantly allocative efficient. The well-known Generalized Vickrey Auction (GVA) is the corresponding auction format of a VCG mechanism for the combinatorial allocation problem. From a computational perspective the GVA has to solve two problems: (1) the winner-determination (2) the determination of the prices. However, both problems are complex (NP-hard). The Pricing Per Column (PPC) auction is another approach to solve the combinatorial allocation problem. In essence, it applies the Vickrey principle to any possible combination of goods and determines the overall winning bids. PPC is computationally less demanding, however, it can be shown that PPC is not necessarily efficient. Apparently, solving the tension between computational and game-theoretic properties is a challenging task in mechanism design. Engineering auctions suggests to lower requirements upon the auction. In this paper the evaluation of the PPC concerning approximate efficiency is presented - in an analytical and simulative evaluation the PPC is compared to the GVA and it is shown that the efficiency losses incurred by the PPC mechanism are very small.}}
					

@Inproceedings{CitationKey,
author = {Kersten, G. and Chen, E. and Neumann, D. and Vahidov, R. and Weinhardt, C.},
title = {{On Comparison of Mechanisms of Economic and Social Exchanges: The Times Model}},
booktitle = {Dagstuhl Seminar Proceedings 06461 Negotiation and Market Engineering},
year = {2006},
address = {Internationales Begegnungs- und Forschungszentrum (IBFI), Schloss Dagstuhl, Germany},
pages = {16-43},
editor = {Jennings, N. and Kersten, G. and Ockenfels, A. and Weinhardt, C.}}