The objective of this paper is to show that part of the fixed cost of a firm’s trade expansion is due to the acquisition of new internal capabilities (e.g., technology, production processes or skills), which implies a costly change in the firm’s internal labor organization. We investigate the relationship between a firm’s labor structure, in terms of the relative number of managers, and the scope of its export portfolio, in terms of its product–destination varieties. The empirical analysis is based on a matched employer–employee dataset covering the population of french firms from tradable sectors over the period 2009–2015. Our analysis suggests that market expansion, both through export entry and export diversification, is associated with ...