Parra, María Dolores; Martínez-Zarzoso, Inmaculada - Institut für Weltwirtschaft (IfW) - 2015
. Secondly, the authors estimate the determinants of the extensive and intensive margins of exports and imports using dynamic … imports than for exports pointing to the existence of sunk costs in both activities. Moreover, past productivity does affect … the extensive margin of imports, but not of exports and the initial condition status is also only relevant for the import …