In the convergence age of media, telecommunication and Internet, firms need more media contents, audiences or platforms to acquire the economics of scale or scope. Some critics argued that the traditional antitrust law handles the violation of horizontal and vertical merger & acquisition, but...

This paper discusses the relation between trade and competition, revising the literature and using indicators, build with Brazilian industrial survey (PIA/IBGE) and foreign trade (Comtrade) data. The premise is that the structure of domestic competition is explained by concentration indices,...