We study tacit collusion in repeated auctions in which bidders can only observe pastwinners and not their bids. We adopt a stringent interpretation of tacit collusion ascollusion without communication about strategies that we model as a symmetryrestriction on repeated game strategies: Strategies...

This paper presents a model of takeover incentives in an oligopolistic industry, which,in contrast to previous approaches, takes both insiders' and outsiders' gains from anincrease in industry concentration into account. Our main application is to comparetakeover incentives in a differentiated...

This paper analyzes the impact of a dynamic specification on the estimation of the conduct parameter in an oligopolistic market. Various empirical studies have shown that in the semiconductor industry, in particular in the Dynamic Random Access Memory (DRAM) market, one has to account for...