Heterogeneidad de las firmas en el comercio internacional: un mapeo sistemático de la literatura

Few studies address the scientific evolution of firm heterogeneity in international trade. This article analyzes the transition between the model, the concept, the theory, and recent advances, using a systematic mapping methodology of 297 documents identified in Scopus. Current trends focus on diversification, multi-product firms, and location in the global economy. Among the conclusions, it is observed that firm heterogeneity remains a relevant model in international economics and an analytical tool in trade dynamics. It is suggested that new dialogues should focus on obtaining competitive advantages and adapting to environmental changes.