Immigrants may complement native workers, increase productivity, allow specialization by skill in the firm and lower … costs. These effects could be beneficial for the firm and increase its productivity and profits. However not all firms use … supply of immigrants on firms' immigrant employment and firm's productivity. Using micro-level data on French firms, we show …

In "new" new international trade theory, whether firms export or not are determined by their productivity. These models … assume that firms enter a market to find their productivity levels revealed to them as in a lottery. In this paper we propose … with a real option value. We show that endogenizing the export decision is consistent with patterns of productivity and …