https://www.iwkoeln.de/en/studies/samina-sultan-juergen-matthes-german-foreign-investment-and-the-debate-over-germany-as-a-business-location.html iw koeln en 2026-10-06 German Foreign Investment and the debate over Germany as a business location https://www.iwkoeln.de/fileadmin/_processed_/1/e/csm_Investitionen_djama_-_Fotolia_869e633ce7.jpg