The formulation and application of competition policy presents significant challenges. These include showing that proposed mergers are anticompetitive, proving that firms are members of cartels and defending apparently restrictive vertical agreements. The editor has selected key papers that...

We examine the decision to advertise a homogenous good. We show that the likelihood of inefficiently low advertising rests heavily on how one models the mechanism by which advertising affects demand. Regardless of this mechanism, however, there is always a lower bound of concentration below...

We analyze competition in product lines by multi-product oligopolists that have preferential access to a local market but can supply a rival's market by incurring distance costs. We show that the width and degree of overlap in the product lines is greater in large markets and when the products...

This paper presents an empirical assessment of movie-theatre attendance in two major metropolitan markets and provides strong support for the importance of spatial characteristics in determining attendance. We consider the hypothesis that attendance at a particular movie theatre reflects a...

We analyze policy options during an international health emergency to provide consumers in least developed countries access to patented life-extending pharmaceuticals. Reliance on property rights exhaustion is shown to be insufficiently flexible and costly to implement. By contrast, the optimal...

We show that the static duopoly model in which firms choose between exporting and foreign direct investment is often a prisoners' dilemma game in which a switch from exporting to foreign direct investment reduces profits. By contrast, we show that when the game is repeated there is a range of...