This article characterizes necessary and sufficient conditions for heterogeneous search goods to trade at their competitive prices, and derives policy implications from these conditions. The model differs from earlier search equilibrium models in that it allows the existence of product...

This article analyzes the behavior of a single firm that is engaged in R&D for a "sponsor." We show that contractual forms that provide good incentives in a static environment may introduce incentive problems in a dynamic setting. More specifically, we show that a firm engaged in a sequence of...