In this paper we analyse a dynamic model of investment under uncertainty in a duopoly, in which each firm has an option to switch from the present market to a new market. We construct a subgame perfect equilibrium in mixed strategies and show that both preemption and attrition can occur along...

There are very few industries that can attract the attention of Congress, multiple federal and state agencies, consumer groups, economists, antitrust lawyers, the business community, farmers, ranchers, and academics as the agriculture workshops have. Of course, with intense interest from...

This comment was filed with the Department of Justice Antitrust Division on December 31, 2009, as "Comments Regarding Agriculture and Antitrust Enforcement Issues in Our 21st Century Economy" in response to the DOJ/USDA request for public comments for the agencies' joint workshops on antitrust...

Italian Abstract: Note sui modelli classici di strategie di differenziazione orizzontale del prodotto con costi di trasporto lineari Hotelling (1929) e quadratici D'Aspremont, Gabsewicz e Thisse (1979). Vengono studiati i risultati dovuti ad imprese con funzioni di costo diverse. Segue una...

Italian Abstract: Vengono esposti i classici risultati dei modelli di oligopolio con beni differenziati sia sostituti che complementari a mosse simultanee, sequenziali e colllusive, con variabile strategica quantità o prezzo. L'utilizzo di funzioni lineari permette di calcolare, disegnare e...

Revisions incorporated into the Horizontal Merger Guidelines in 2010 claim that the Department of Justice and the Federal Trade Commission consider anticompetitive effects to product “variety” when evaluating mergers. The Guidelines do not, however, explain the methodology or tools that can...

Has the antitrust arsenal run out of novel theories or weapons? Think again. Recent scholarship has come to challenge conventional wisdom with the latest target of antitrust imagination being institutional investors, including diversified index funds. New economic research suggests that common...

A methodology is proposed to estimate structural models of product line competition. This methodology enables researchers to estimate demand systems accounting for the endogeneity of the mix of products available in each market, an issue which is typically ignored in the empirical literature. In...