This chapter surveys empirical models of market structure. We pay particular attention to equilibrium models that interpret cross-sectional variation in the number of firms or firm turnover rates. We begin by discussing what economists can in principle learn from models with homogeneous...

This article reviews recent developments in the study of industry dynamics, with a special emphasis on the econometric endogeneity of market structure. Endogeneity of market structure follows from the presence of serially correlated unobservable shocks to the profitability of firms' dynamic...

This article reviews recent developments in the study of firm and industry dynamics, with a special emphasis on the econometric endogeneity of market structure. The endogeneity of market structure follows from the presence of serially correlated unobservable shocks to the profitability of...