Combinatorial auctions, which allow bidders to bid not only on individual items but also on packages of items and to express complementary and substitute relationships between items, have rarely been used for…
Consumers acquire information through their own search efforts or through word-of-mouth communication within their social network. Information diffusion leads to free-riding and less active search. Free-riding…
I consider a seller selling a good to bidders with two-dimensional private information: their valuation for a good and their characteristic. While valuations are non-verifiable, characteristics are partially…
We study optimal mechanisms for a utilitarian designer who seeks to assign a finite number of goods to a group of ex ante heterogeneous agents with unit demand. The agents have heterogeneous marginal utilities…