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...

We study the XVII century market for figurative paintings in Italy, analyzing original contracts between patrons and artists: this is one of the first manufacturing markets for which econometric evidence of the basic laws of economics can be found. Size of paintings, expected quality, type of...

I analyze the role of leadership in multi-sided markets as online advertising. Search and display advertising are better characterized by (respectively) quantity and price competition. A platform that reached dominance in search may have an incentive to limit services to consumers to be...

We analyze the labor market for painters in Baroque Rome using unique panel data on primary sales of still lifes, portraits, genre paintings, landscapes and figurative paintings. In line with the traditional hierarchy of genres, average price differentials between them were high. We identify...

One of the pioneering works on endogenous market structures, by Tandon (1984), has extended the standard Cournot model with linear demand to endogenous entry and sunk R&D costs to show that the endogenous number of firms is independent from the size of the market. I generalize the model in many...