Internacjonalizacja przedsiebiorstw w kontekscie osiaganych przez nie wynikow finansowych

Purpose: The purpose of this article is to assess the impact of the internationalisation process on the financial performance of companies. Methodology: random sampling was used, where joint-stock companies from the South American region were considered in the research sample. The empirical chapter used econometric models to verify the hypothesis. Results: Hypothesis H (There is a relationship between selected financial performance and the internationalisation process of companies) was confirmed by the model (within model). This may be due to the fit of the variables to the model and the size of the research sample. Limitations/implications: The obtained results may have been determined by the size of the research sample. The relatively small research sample may have been the reason for accepting the research hypothesis only in the within model. Originality/value: The empirical solutions developed constitute an original study on the topic of the importance of internationalisation for the development of companies in international markets.