Over the last 30 years researchers have examined the link between performance
and the degree of internationalization, reporting inconsistent and contradictory
results. This paper, by performing Data Envelopment Analysis (DEA), tries
to contribute to the existing literature by investigating whether firms’ internationalization
levels have an impact on their performance. Using a sample of ten
Transnational corporations from South-East Europe the paper provides information
regarding their efficiency levels. Finally, using the “Transnationality Index”
(TNI) provided by UNCTAD in order to capture the levels of internationalisation,
our results reveal that there is a positive influence on firms’ performance.
