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Concubinage or Marriage? Informal and Formal Cooperations for Innovation

Keilbach, Max; Bönte, Werner - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2004

Based on a sample of German innovating firms that contains information on formal and informal innovation cooperation … cooperations are the innovation dynamics at the industry level. Firms who operate an R&D department and firms who are involved in …

Persistent link: https://www.econbiz.de/10005097987

Spillovers in networks of user generated content: Pseudo-experimental evidence on Wikipedia

Kummer, Michael - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2014

I quantify spillovers of attention in a network of content pages, which is challenging, because such networks form endogenously. I exploit exogenous variation in the article network of German Wikipedia to circumvent this problem. Wikipedia prominently advertises one featured article on its main...

Persistent link: https://www.econbiz.de/10011139789

Spillovers in networks of user generated content: Evidence from 23 natural experiments on Wikipedia

Kummer, Michael E. - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2013

Endogeneity in network formation hinders the identification of the role social networks play in generating spillovers, peer effects and other externalities. This paper tackles this problem and investigates how the link network between articles on the German Wikipedia influences the attention and...

Persistent link: https://www.econbiz.de/10010957727

Young, open and international: the impact of search strategies on the internationalization of new ventures

Zimmermann, Jörg; Grimpe, Christoph; Sofka, Wolfgang - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2009

internationalization process. We contribute to this research stream by establishing theoretical links with the emerging open innovation … with regard to the effect of open innovation strategies on internationalization performance. Our results show that both the …

Persistent link: https://www.econbiz.de/10005098125

Do Spillovers Stimulate Incremental or Drastic Product Innovations? Hypotheses and Evidence from German Establishment Data

Jirjahn, Uwe; Kraft, Kornelius - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2006

We estimate the determinants of various types of product innovation. Knowledge spillovers from rivals have a positive … exert no such independent influence on drastic innovation activities. The results support the hypothesis that establishments …

Persistent link: https://www.econbiz.de/10005097593

Knowledge Flows and R&D Co-operation: Firm-level Evidence from Germany

Schmidt, Tobias - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2005

the Third Community Innovation Survey from Germany, we focus on the role of spillovers in explaining R&D cooperation. We …

Persistent link: https://www.econbiz.de/10005097848

Internationalizing R&D Co-opetition: Dress for the Dance with the Devil

Schmiele, Anja; Sofka, Wolfgang - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2007

Competitors can be valuable sources and partners for innovation activities. Against the background of international …

Persistent link: https://www.econbiz.de/10005097905

Innovation Activities Abroad and the Effects of Liability of Foreignness: Where it Hurts

Sofka, Wolfgang - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2006

The innovation activities of foreign subsidiaries have been identified as an important source of competitive advantage … foreignness). We derive potential stumbling blocks in the innovation process theoretically and argue that these materialize as … innovation activities in Germany from various sectors. We find that foreign-controlled firms are not challenged by liability of …

Persistent link: https://www.econbiz.de/10005098242

Knowledge Flows and R&D Co-operation: Firm-level Evidence from Germany

Schmidt, Tobias - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2005

the Third Community Innovation Survey from Germany, we focus on the role of spillovers in explaining R&D cooperation. We …

Persistent link: https://www.econbiz.de/10005098373