MELITZ, MARC J.; OTTAVIANO, GIANCARLO I. P. - In: Review of Economic Studies 75 (2008) 1, pp. 295-316
We develop a monopolistically competitive model of trade with firm heterogeneity-in terms of productivity differences-and endogenous differences in the "toughness" of competition across markets-in terms of the number and average productivity of competing firms. We analyse how these features vary...