We study how different measures of market concentration explain investment decisions of Mexican manufacturing firms. The Herfindahl-Hirschman Index is the traditional measure of market structure concentration. The Dominance Index is a competition measure used by Mexican regulators. The...

We study the evolution of profits, investment and market shares in US industries over the past 40 years. During the 1990's, and at low levels of initial concentration, we find evidence of efficient concentration driven by tougher price competition, intangible investment, and increasing...

We study the evolution of profits, investment and market shares in US industries over the past 40 years. During the 1990's, and at low levels of initial concentration, we find evidence of efficient concentration driven by tougher price competition, intangible investment, and increasing...