This study presents the first empirical test with German establishment level data of a hypothesis derived by Helpman et al. (2004) in a model that explains the decision of heterogeneous firms to serve foreign markets either through exports of foreign direct investment: only the more productive...

This paper presents the first empirical test with German establishment level data of a hypothesis derived by Helpman, Melitz and Yeaple in a model that explains the decision of heterogeneous firms to serve foreign markets either trough exports or foreign direct investment: only the more...

Die vorliegende Dissertation besteht aus fünf voneinander unabhängigen Papieren, die zwei größeren Forschungsfelder abdecken: die Ökonomie des Alterns und die Innovationsökonomik. Die ersten drei Kapitel betrachten den Einfluss der Interaktion zwischen Generationen auf die Eltern...