The Generalized First- and Second-Price Auctions: Overbidding, Underbidding, and Optimal Reserve Price

Ziyi Tan and Shulin Liu
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Ziyi Tan: Department of Quantitative Economics, University of International Business and Economics, Beijing 100029, China
Shulin Liu: Department of Quantitative Economics, University of International Business and Economics, Beijing 100029, China

Mathematics, 2022, vol. 10, issue 3, 1-15

Abstract: The paper generalizes the models of the standard first- and second-price auctions (FPA and SPA) by using the Cobb-Douglas function to evaluate bidders’ two conflicting bidding preferences for the probability of winning the item ( C pwin ) and the profit conditional on winning ( C profit ). Compared with the popular expected profit function, this function has the advantage of allowing the bidders to equally or differently value C pwin and C profit from the point of view of multiple criteria decision making, and then can capture bidders’ bidding behavior in reality. Introduction of the Cobb-Douglas function into the FPA allows us to provide new interpretations for overbidding (underbidding) behavior and the dependence of the optimal reserve price on the number of bidders. Our new interpretations are all attributed to the bidders’ different preferences for C pwin and C profit . In contrast, this introduction into the SPA does not matter. Our findings suggest that the seller should prefer the FPA (SPA) over the SPA (FPA) and set a lower (higher) optimal reserve price if he conjectures that the bidders have a stronger desire to win an auction (to obtain a profit). The above results help the seller to select between the two auctions and set a reserve price in practice.

Keywords: first-price auction; second-price auction; reserve price; Cobb-Douglas preference; overbidding and underbidding; multiple criteria decision making; order statistics (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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