Underpricing and Market Power in Uniform Price Auctions
AbstractIn uniform auctions, buyers choose demand schedules as strategies and pay the same ‘market clearing’ price for units awarded. Despite the widespread use of these auctions, the extant theory shows that they are susceptible to arbitrarily large underpricing. We make a realistic modification to the theory by allowing discrete prices, quantities and bids. We show that underpricing can be made arbitrarily small by choosing a sufficiently small price tick size and a sufficiently large quantity multiple. We also show how one might improve revenues by modifying the allocation rule. A trivial change in the design can have a dramatic impact on prices. Our conclusions are robust to bidders being capacity constrained. Finally, we examine supply uncertainty robust equilibria.
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Bibliographic InfoPaper provided by C.E.P.R. Discussion Papers in its series CEPR Discussion Papers with number 4363.
Date of creation: Apr 2004
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Other versions of this item:
- Ilan Kremer, 2004. "Underpricing and Market Power in Uniform Price Auctions," Review of Financial Studies, Society for Financial Studies, vol. 17(3), pages 849-877.
- D44 - Microeconomics - - Market Structure and Pricing - - - Auctions
- G10 - Financial Economics - - General Financial Markets - - - General (includes Measurement and Data)
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