The 'doing-using-interacting mode' of innovation (DUI) is considered an important component of innovative activity. It describes informal innovative activities and complements the 'science-technology-innovation mode' (STI) which is based on research and development. A common demarcation...

This paper presents microeconometric evidence on financing con-traints for research and development activities in German small and medium?sized firms (SME). Special attention is paid to the role of public R&D subsidies. For this purpose SME in Western and East-ern Germany are compared because...