We consider a modi¯ed pure public good game characterized by a pre-play negotiation stage, onwhich pairs of players can form binding cooperation commitments. As the introduced mecha-nism only supports pairwise rather than more inclusive commitments, it does not implement thee±cient outcome. We...

This paper analyses the effects of innovation networks on product and pro-cess innovation and sales growth of high technology SMEs. Innovation net-works are positively related to both product and process innovation, i.e. know-ledge creation. One exception is the negative effect of innovation...

This paper analyses the process of knowledge growth in a branch of medical science. Our study of scientific advances in glaucoma research is organized in two parts. In the first we present a qualitative overview of the problem sequences that have characterized 150 years of medical research in...

When workers send applications to vacancies they create a network. Frictions arise becauseworkers typically do not know where other workers apply to and firms do not know whichcandidates other firms consider. The first coordination friction affects network formation, whilethe second coordination...

Am Abend des 30. Oktober 1938 löste eine Radiosendung in den USA eine Massenhysterie aus (vgl. Wells 1974: 342). Das Hörspiel Krieg der Welten wurde von ca. sechs Millionen Menschen verfolgt, zwei Millionen von ihnen glaubten, die Sendung basiere auf aktuellen Geschehnissen. Die darauf...

Many social networks have the following properties: (i) a short average distancebetween any two individuals; (ii) a high clustering coe±cient; (iii) segregation pat-terns; the presence of (iv) brokers and (v) hubs. (i) and (ii) de¯ne a small worldnetwork. This paper develops a strategic...

This paper examines the puzzlingly high unexploited momentum returns from a new perspective.We analyze characteristics of momentum traders in a sample of 692 fund managers. Wefind that momentum traders are “defined” by their short-term horizon, by a behavioural viewon the market and by a...

This paper provides unheard direct evidence that comparisons exert a significant effect onsubjective well-being. It also evaluates the relative importance of different types ofbenchmarks...