In this paper we show that free entry decisions may be socially ineffcient, even in a perfectly competitive homogeneous goods market with non-lumpy investments. In our model, inefficient entry decisions are the result of risk-aversion of incumbent producers and consumers, combined with...

Many commodities are traded on both a spot market and a derivative market. We show that an incumbent producer may use purely financial derivatives to extract rent from a potential entrant. It can do so by selling derivatives to a large buyer for more than his expected production level. This...