RT Journal Article T1 Export activity, persistence and mark-ups T2 Export activity, persistence and mark-ups A1 Moreno Martín, María Lourdes A1 Rodríguez Rodríguez, Diego Antonio AB This paper addresses the differences in margins across exporting and non-exporting firms. We jointly estimate a translog cost function, a variable factor share equation and price-cost margin equations to analyze the effect of persistence in export activity on margins. Additionally, we extend this benchmark to consider the multimarket nature of exporters. Results indicate that non-exporters have smaller margins than persistent exporters and firms that entered foreign markets during the nineties. However, larger export ratio is negatively associated with margins for latter. It suggests that efficiency advantages for exporters are partially compensated by bigger competitive pressure in international markets. PB Taylor and Francis SN 1466-4283 YR 2010 FD 2010 LK https://hdl.handle.net/20.500.14352/42684 UL https://hdl.handle.net/20.500.14352/42684 LA eng NO Ministerio de Ciencia e Innovación (MICINN) DS Docta Complutense RD 19 abr 2025