RT Report T1 The effect of international trade on mark-ups distribution A1 Moreno Martín, Lourdes A1 Rodriguez Rodriguez, Diego AB This paper presents empirical evidence about the relationship between market openness and markup distribution of manufacturing firms. The empirical analysis uses a panel data set of Spanish firms in the period 1990-2005, with a structural approach that lets us to identify individual mark-ups. The results point out that tougher competition associated to openness reduces the average of marginal costs and prices, while it increases the average firm size. However, the evidence about the effect on average markups and the dispersion of performance variables is weaker. These results partially support the theoretical predictions by the recent literature on efficiency heterogeneity and international trade and, in particular, Melitz and Ottaviano (2008). YR 2009 FD 2009 LK https://hdl.handle.net/20.500.14352/56735 UL https://hdl.handle.net/20.500.14352/56735 LA eng NO JEL Classification Numbers: F12, L60, L13 NO CICYT DS Docta Complutense RD 30 abr 2024