Two duopolists compete in price on the market for a homogeneous product. They can ‘profile’ consumers, i.e., identify their valuations with some probability. If both firms can profile consumers but with different abilities, then they achieve positive expected profits at equilibrium. This...

Two duopolists compete in price on the market for a homogeneous product. They can 'profile' consumers, i.e., identify their valuations with some probability. If both firms can profile consumers but with different abilities, then they achieve positive expected profits at equilibrium. This...

This note compares monopoly equilibrium outcomes with those of duopoly when firms price their products with two-part tariffs. Although a monopolistic firm never charges a lower marginal price than imperfectly competitive firms, it sets a lower entry fee under certain market conditions. In turn,...

Conventional wisdom holds that the European Union has opted to apply its competition law to the exercise of intellectual property rights to a much greater extent than has the United States. We argue that, at least in the context of copyright protection, this conventional wisdom is false. While...

We develop a model with one innovating northern firm and heterogeneous southernfirms that compete in a final product market. We assume southern firms differ in their intrinsiccosts and their ability to adapt technology and study southern incentives to protect intellectualproperty rights. We find...

We develop a model with one innovating northern firm and several heterogeneousSouthern firms that compete in a final product market. We assume the southern firms differ intheir ability to adapt technology and use this heterogeneity to study the differing incentives ofsouthern governments to...

We provide evidence that over the past 30 years, U.S. firms have expanded their scope of operations. Increases in scope and scale were achieved largely without increasing traditional operating segments. Scope expansion significantly increases valuation and is primarily realized through...

Using new measures of expanded Internet access in China and internet-based search, we examine how competitive shocks from China impact U.S. innovation through the markets for innovation and existing products. We identify shocks to innovation and existing product competition using the geography...