We analyze the evolution of the price of paintings in the XVII century Amsterdam art market to test a hypothesis of endogenous entry: higher probability should attract more entry of painters, which in turn should lead to artistic innovations and more intense competition. We build a price index...

We analyze the evolution of the price of paintings in the XVII century Amsterdam art market to test a hypothesis of endogenous entry: higher profitability should attract more entry of painters, which in turn should lead to artistic innovations and more intense competition. We build a price index...

We analyze the evolution of the price of paintings in the XVII century Amsterdam art market to test a hypothesis of endogenous entry: higher profitability should attract more entry of painters, which in turn should lead to artistic innovations and more intense competition. We build a price index...

We derive a New Keynesian Phillips Curve under Calvo staggered pricing and price competition. Firms strategic interactions induce price adjusters to change their prices less when there are more firms that do not adjust. This reduces the slope of the Phillips curve and generates an additional...

We reconsider the New Keynesian model with staggered price setting when each market is characterized by a small number of firms competing in prices à la Bertrand rather than a continuum of isolated monopolists. Price adjusters change their prices less when there are more firms that do not...

Most market structures are neither perfectly or monopolistically competitive: they are characterized by a small number of large firms engaged in strategic interactions in their production and investment decisions. Yet, most of our economic theories are still based on a simplified world where...

I characterize microfounded endogenous market structures with Bertrand and Cournot competition and perform welfare analysis generalizing the Mankiw-Whinston condition for excess entry. The impact of market leaders on welfare is reconsidered, with a number of policy implications about strategic...

I characterize the optimal unilateral trade policy for domestic firms competing in domestic or integrated markets with endogenous entry of foreign firms. Under conditions satisfied in most trade models (as with quasi-linear or Dixit-Stiglitz preferences), the analysis is simplified by a...