Henning Lucas Gottfried Wilhelm Leibniz University Hannover   Nienburger Straße 17 Hannover, Niedersachsen 30167 Germany   henning.lucas@ite.uni-hannover.de   https://www.ite.uni-hannover.de/de/           JEL Areas: O : Economic Development, Technological Change, and Growth O3 : Technological Change; Research and Development: General