Customer coalitions in the electronic marketplace
AGENTS '00 Proceedings of the fourth international conference on Autonomous agents
A stable and efficient buyer coalition formation scheme for e-marketplaces
Proceedings of the fifth international conference on Autonomous agents
Algorithm for combinatorial coalition formation and payoff division in an electronic marketplace
Proceedings of the first international joint conference on Autonomous agents and multiagent systems: part 1
Frictionless Commerce? A Comparison of Internet and Conventional Retailers
Management Science
Expert Systems with Applications: An International Journal
Electronic Commerce Research and Applications
On representing coalitional games with externalities
Proceedings of the 10th ACM conference on Electronic commerce
Consumer adoption of group-buying auctions: an experimental study
Information Technology and Management
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This paper considers a model for exogenous coalition formation in e-marketplaces. Using its informational advantage, an e-retailer creates coalitions of customers based on geographical proximity. Most of the literature regards this process as endogenous: a coalition leader among the buyers bundles eventual purchases together in order to obtain a better bargaining position. In contrast - and in response to what is typically observed in business practice - we analyse a situation in which an existing e-retailer exogenously forms customers' coalitions. Results of this study are highly encouraging. Namely, we demonstrate that even under highly imperfect warehouse management schemes leading to contagion effects, the proposed combined delivery service may offer significant efficiency gains as well as opportunities for Pareto improvement.