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This paper aims to analyze the U.S imports of frames between 2005 and\ud2009. Concentration indexes were used to characterize the behavior of the studied\udmarket. The indices chosen for this work were: concentration ratio of the four and the\udeight countries with the highest import, rate of market concentration of the same four and\udeight major countries, the Herfindahl-Hirschman and Gini Index. All the results indicate\udto a dominated market, highly concentrated, and with 94% of the market centered on\udfour main exporting countries and 97% concentrated in the top eight. Also, it is possible\udto conclude that China is the main exporter of frames for the U.S. market, holding\udapproximately 70% of total frames imports

CONCENTRAÇÃO DE MERCADO DE MOLDURAS (FRAME) IMPORTADAS PELOS ESTADOS UNIDOS, PERÍODO DE 2005 A 2009