Internationalization, Product Innovation and the moderating Role of National Diversity in the Employment Base

The effects of establishing foreign-based subsidiaries on firm performance have long been debated, where empirical evidence hints at gains in terms of costs reductions, productivity or growth. Yet, little is known about the effects on innovative capabilities at the home base. Using a matched-employer-employee panel dataset of the Swedish Community Innovation Surveys (CIS) between 2008 and 2014, we estimate whether the employee share at subsidiaries abroad affects product innovation performance at home. Our results show the effects are positive on average. However, there is also evidence of detrimental effects of having employees abroad on innovation. In particular, for excessive shares of employees at foreign location, we provide evidence of an inverted u-shape between the probability to introduce product innovations and the share of foreign employment. Moreover, we show that the benefits of foreign employment are larger for firms with a more nationally diverse workforce at the home base. Our results are robust to a wide variety of robustness checks.