This paper reviews the recent theoretical literature on heterogeneous firms and trade, whichemphasizes firm selection into international markets and reallocations of resources acrossfirms. We discuss the empirical challenges that motivated this research and its relationship totraditional trade...

This paper reviews the recent theoretical literature on heterogeneous firms and trade, which emphasizes firm selection into international markets and reallocations of resources across firms. We discuss the empirical challenges that motivated this research and its relationship to traditional...