Moreno Martín, LourdesRodríguez Rodríguez, Diego2023-06-202023-06-202013Bernstein, J. and P. Mohnen (1991): "Price-Cost Margins, Exports and Productivity growth: with an Application to Canadian Industries", Canadian Journal of Economics, 24, 638-659. Bellone, F., Musso, P., Nesta, L. and F. Warzynski (2012): “Productivity, Trade and Endogenous Mark-ups: Testing some Micro-level Implications of the Melitz-Ottaviano Model”, mimeo. Chen, N., J. Imbs and A. Scott (2009): "The dynamics of trade and competition", Journal of International Economics, 77, 1, 50-62. De Loecker, J. and Warzynski, F., (2012): “Markups and Firm-Level ExportStatus”, American Economic Review, 102(6), pp. 2437-2471.Feenstra, R. and D. Weinstein (2010): “Globalization, Markups and the U.S. Price Level”, Working Paper 15479, NBER. Melitz, M.J. (2003): “The impact of trade on intra-industry reallocations and aggregate industry productivity”, Econometrica, 71, 6, 1695-1725. Melitz, M. J. and G.I.P. Ottaviano (2008): "Market Size, Trade, and Productivity", The Review of Economic Studies, 75, 295-316. Moreno, L. and D. Rodríguez (2010): “Export activity, persistence and mark-ups”, Applied Economics,42, 475-488. Ottaviano, G.I.P., T. Tabuchi and J.F.Thisse (2002): “Agglomeration and Trade Revisited”, International Economic Review, 43, 409-436. Roeger, W. (1995): “Can imperfect competition explain the difference between primal and dual productivity measures? Estimates for U.S. Manufacturing”, Journal of Political Economy, 103 (2), 316-330.doi.org/10.17811/ebl.2.1.2013.33-41https://hdl.handle.net/20.500.14352/42687This 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 to identify individual mark-ups. The results point out that tougher competition associated to openness reduces 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 across industries 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).engjournal articlehttps://www.unioviedo.es/reunido/index.php/EBL/article/view/9820open accessF12L60L13Comercio internacionalMarcasDistribución.International TradeMark-ups Distribution.Bancos y cajasEconomía internacionalEconomía industrial5310 Economía Internacional