The effect of investing abroad on investment at home

This paper examines the relationship between foreign and domestic investment activity of multinational enterprises. The empirical analysis is based on micro data of German firms and their operations at home and abroad, including information on investment in fixed assets. The empirical approach, which rests upon extensive and intensive margin variation, is shown to produce very robust results. These suggest a positive relationship between foreign and home investment in real capital. This positive effect seems to be mainly related to additional opportunities for tax planning and better access to financing capital. In contrast, we do not find evidence that improved production processes and technology upgrading cause the positive effect on investment at home. Our empirical approach allows us to distinguish between an extensive and intensive margin effect: setting up a new foreign affiliate leads to an immediate positive effect of about EUR 450,000 additional investment; the investment elasticity at the intensive margin is estimated to be approximately 0.13.