New York University
Stern School of Business
44 West 4th Street
New York, NY 10012
NBER Working Papers and Publications
|November 2016||The Competitive Effects of Information Sharing|
with John Asker, Chaim Fershtman, Ariel Pakes: w22836
We investigate the impact of information sharing between rivals in a dynamic auction with asymmetric information. Firms bid in sequential auctions to obtain inputs. Their inventory of inputs, determined by the results of past auctions, are privately known state variables that determine bidding incentives. The model is analyzed numerically under different information sharing rules. The analysis uses the restricted experience based equilibrium concept of Fershtman and Pakes (2012) which we refine to mitigate multiplicity issues. We find that increased information about competitors’ states increases participation and inventories, as the firms are more able to avoid the intense competition in low inventory states. While average bids are lower, social welfare is unchanged and output is increase...