Market-Based Methods Group: Publications

Information Economics, Shopbots and Pricebots

• A Model of Market Power and Efficiency in Private Electronic Exchanges Ravi Aron , Lyle Ungar, Annapurna Valluri, in press, European Journal of Operational Research, (EJOR) 2006
• The Dissemination of Information about Horizontal and Vertical Product Attributes in eMarkets, R. Aron, P. Markopoulos, and L.H. Ungar, Management Science, 2005.
• Is Online Product Information Availability Driven by Quality or Differentiation? Panos M. Markopoulos, Ravi Aron, Lyle Ungar, International Conference on Information Systems (ICIS), 2005.
• Endogenous Bidding in Iterative Combinatorial Auctions, R. Kwon A. Anadalingam and L. Ungar, Management Science, March, 2005
• "Dual Pricing in Electronic Markets" P.M. Markopoulos, R. Aron and L.H. Ungar. In Proceedings of the International Conference on Information Systems. (ICIS-03), Seattle , USA, December 2003
• R. Aron, Markopoulos, P.M. and L.H. Ungar. Dual Pricing and Information Deficit in E-Commerce. WISE 2002.
• Markopoulos, P.M. and Kephart, J.O. [PDF] How Valuable are Shopbots? In Proc. First International Conference on Autonomous Agents and Multiagent Systems (AAMAS-02), Bologna, Italy 2002.
• Markopoulos, P.M. and Ungar, L.H. (4 page version)[PS][PDF] Pricing Price Information in E-commerce. Proc. ACM Conference on Electronic Commerce (EC'01), Tampa, Florida, 2001 
  
  
• P.M. Markopoulos and L.H. Ungar. Book chapter "Shopbots and Pricebots in Electronic Service Markets", to appear in "Game theory and decision theory in agent-based systems", Kluwer Academic Publishers. [PS][PDF]
• Markopoulos, P. M. and Ungar, L. H. 2001. Book chapter "Shopbots and Pricebots in Electronic Service Markets", in Game theory and decision theory in agent-based systems, Kluwer Academic Publishers, to appear. postscript, pdf An early version presented in Game Theoretic and Decision Theoretic Agents workshop in ICMAS '2000 -The Fourth International Conference on MultiAgent Systems. Access presentation slides as HTML or MS Powerpoint '97 .

Auctions and Mechanism Design

• A Combinatorial Auction-Based Method for Supply Chain Management, Roy Kwon and Lyle Ungar, INFORMS, 2003.
• Iterative Combinatorial Auctions with Bidder Determined Combinations, R. Kwon A. Anadalingam and L. Ungar, Management Science, 2004.
• A Primal-Dual Algorithm for Winner Determination in Combinatorial Auctions. R. Kwon, G. Anandalingam, and L.H. Ungar, INFORMS, 2001.
• Parkes, D. C., Kalagnanam, J. and Eso, M. [PS] [PDF] Achieving Budget-Balance with Vickrey-Based Payment Schemes in Exchanges. To appear, Proc. 17th International Joint Conference on Artificial Intelligence (IJCAI-01), 2001.
• Parkes, D. C. and Ungar, L. H. 2001. [PS] [PDF] An Auction-Based Method for Decentralized Train Scheduling. In, Proc. 5th International Conference on Autonomous Agents (Agents'01), 2001.
• Parkes, D. C. 2001. [PS] [PDF] An Iterative Generalized Vickrey Auction: Strategy-Proofness without Complete Revelation. In AAAI Spring Symposium on Game Theoretic and Decision Theoretic Agents Stanford University, CA. March, 2001.
  
• Parkes, D. C. and Huberman, B. A. 2001. Multiagent Cooperative Search for Portfolio Selection. In, Games and Economic Behavior, 35:124-165. Earlier versions appeared as: Adaptive Portfolio Selection by Investment Groups, in Proc. IFAC Symposium on Computation in Economics, Finance and Engineering (CEFES'98), Cambridge, England; and Cooperative Multiagent Search for Portfolio Selection , in Proc. Agents'98 Workshop on Artificial Societies and Computational Markets (ASCMA'98), Minneapolis/St. Paul, MN.
• Parkes, D. C. and Ungar, L. H. 2000. Iterative Combinatorial Auctions: Theory and Practice. Proc. 17th National Conference on Artificial Intelligence (AAAI-00), pp 74-81.
• Parkes, D. C. and Ungar, L. H. 2000. Preventing Strategic Manipulation in Iterative Auctions: Proxy-Agents and Price-Adjustment. Proc. 17th National Conference on Artificial Intelligence, (AAAI-00), pp 82-89.
• Jose, R. A. and Ungar, L. H., 2000. Pricing Interprocess Streams Using Slack Auctions , 575-587, AIChE Journal.
• Parkes, D. C. 1999. iBundle: An Efficient Ascending Price Bundle Auction. Proc. ACM Conference on Electronic Commerce (EC-99), pp. 148-157.
• Parkes, D. C. 1999. Optimal Auction Design for Agents with Hard Valuation Problems. [Revised LNAI 1788] In Proc. IJCAI'99 Workshop on Agent Mediated Electronic Commerce (AmEC-99). Stockholm, Sweden.
• Parkes, D. C., Ungar, L. H. and Foster, D. P. 1999. Accounting for Cognitive Costs in On-line Auction Design. In Noriega, P. and Sierra, C. eds., Agent mediated electronic commerce (LNAI 1571), 25--40. Springer-Verlag.
  Earlier version appeared as Cost and Trust Issues in On-Line Auctions , in Proc. Agents'98 Workshop on Agent Mediated Electronic Trading (AMET'98), Minneapolis/St.Paul, MN.
• Jose, R. A. and Ungar, L. H. 1998. Auction-Driven Coordination for Plantwide Optimization , In Proc. Foundations of Computer-Aided Process Operation FOCAPO.
• Parkes, D. C. and Ungar, L. H. 1997. Learning and Adaption in Multiagent Systems In Proc. AAAI-97 Multiagent learning workshop. Providence, RI.
• Jose, R. A., Harker P. T., and Ungar, L. H. 1997. Auctions and Optimization: Methods for Closing the Gap Caused by Non-Convexities in Preferences , In Proc. IFAC Symposium on Computation in Economics, Finance and Engineering (CEFES'97), Stanford, CA.
• Tan, J.C. and Harker, P. T. 1997. Designing Workflow Coordination: Centralized Versus Market-Based Mechanisms. Forthcoming, Information Systems Research.
• Jose, R. A. and Ungar, L. H. 1996. Auction-Based Methods for Distributed Control , In Proc. American Institute of Chemical Engineers (AICHE'96), Chicago, IL.
• Harker, P. T. and Ungar, L. H. 1996. A Market-Based Approach to Workflow Automation , In Proc. NSF Workshop on Workflow and Process Automation in Information Systems, Athens, GA.

Working Papers

• Markopoulos, P.M. and Ungar, L.H. 2002(extended version) Pricing Price Information in E-commerce
• Markopoulos, P.M. and Ungar, L.H. 2001 Meta-prices for Price Information
• Belknap, M. H. and Harker, P. T., 1999 Beyond Intelligent Buyers and Sellers: Introducing Manager Agents. In review.
• Jose, R. A. and Ungar, L. H., 1999. Designing Profit Maximizing, Multi-loop Control Systems with Slack Prices. In preparation.
• Jose, R. A. and Ungar, L. H., 1999. Auction Based Design of Distillation Control Systems. In preparation.
• Malik, S. and Harker, P. T. 1998. Coordinating Supply Chains with Competition: Capacity Allocation in Semiconductor Manufacturing , Working Paper, Fishman-Davidson Center, The Wharton School.
• Jose, R. A., Harker, P. T. and Ungar, L. H. 1997. Auctions and Optimization: Closing the Gap Caused by Discontinuities in Demands, draft manuscript.
• Jose, R. A., Harker, P. T. and Ungar, L. H. 1997. Coordinating Locally Constrained Agents Using Augmented Pricing , Wharton Financial Institutions Center Working Paper.

Dissertations

• Parkes, D. C. May, 2001. Iterative Combinatorial Auctions: Achieving Economic and Computational Efficiency , Dissertation. Department of Computer and Information Science, University of Pennsylvania.
• Jose, R. A. June, 1997. Auction-Based Optimization for Plantwide Control , Dissertation Proposal. Systems Engineering, University of Pennsylvania.