We compare private and public enforcement of the antitrust laws in a simple strategic model of antitrust violation and lawsuit. The model highlights the tradeoff that private firms are initially more likely than the government to be informed about antitrust violations, but are also more likely...

We develop a model of scarce, renewable resources to study the commons problem. We show that, contrary to conventional wisdom, property rights can often be less efficient than a commons. In particular, we study two effects: (1) waste which arises when individuals expend resources to use a...

This paper studies procurement contracts where a buyer can either divide full production among multiple suppliers or award the entire production to a single supplier. We examine the effect of using multiple suppliers on investment incentives. In a framework of generalized second-price auctions...