Firms compete increasingly in an open innovation environment. Search strategies for external knowledge become therefore crucial for firm success. Existing research differentiates between the breadth (diversity) and depth (intensity) with which firms pursue external knowledge source. A consensus...

Die deutsche Wirtschaft ist hoch innovativ. Sowohl 2 von 3 Unternehmen des Verarbeitenden Gewerbes als auch des Dienstleistungssektors haben nach den jüngsten Innovationserhebungen des ZEW in den Jahren 1996 bis 1998 neue Produkte/Dienstleistungen oder Prozesse eingeführt. Jedoch sind die...

In this paper, we compare two different representations of Framework Programs as affiliation network: 'One-mode networks' and 'Two-mode networks'. The aim of this article is to show that the choice of the representation has an impact on the analysis of the networks and on the results of the...

This report is an account of the relationship between the ERA development and German research and innovation policy (R&I policy). The report introduces what ERA is and how the activities and instruments at European level have fundamentally changed and broadened. It provides a discussion of key...

This paper describes a classroom exercise that illustrates the investment incentives facing firms when technological spillovers are present. The game involves two stages in which student "sellers" first make investment decisions then production decisions. The classroom game can be used to...