This paper proposes a model of urban agglomeration in conjunction with imperfect competition and endogenous product R&D of firms. The quality of differentiated manufacturing goods is a result of R&D services provided by research firms. Sectoral interactions are subject to spatially dependent...

A new model of economic growth introduces the knowledge filter between new generic knowledge and economically-useful knowledge. It identifies both the formation of new ventures and the absorptive capacity of incumbent firms as the mechanisms that penetrate the knowledge filter. Recent empirical...

Although human capital externalities are a key variable in theories of economic growth, there has been little investigation of the mechanism by which these externalities are realized. We examine the relationship between the local levels of human capital and firm formation rates and find that...

Contemporary theories of entrepreneurship generally focus on the decision-making context of the individual. The recognition of opportunities and the decision to commercialize them is the focal concern. While the prevalent view in the entrepreneurship literature is that opportunities are...

A new model of economic growth introduces the knowledge filter between new knowledge and economically useful knowledge. It identifies both new ventures and incumbent firms as the mechanisms that penetrate the knowledge filter. Recent empirical work has shown that new firms are more proficient at...

Various authors, most notably Putnam (2000), have argued that low-density living reduces social capital and thus social interaction, and this argument has been used to buttress criticisms of urban sprawl. If low densities in fact reduce social interaction, then an externality arises, validating...

DSGE-models have become important tools of analysis not only in academia but increasingly in the board rooms of central banks. The success of these models has much to do with the coherence of the intellectual framework it provides. The limitations of these models come from the fact that they...

This paper investigates whether knowledge transferred from different sources matter differently for carrying out different innovation outcomes, using a firm-level dataset collected in the Pearl River Delta (PRD) in China. It also investigates whether companies in the PRD in China tend to...

Im vorliegenden Diskussionspapier werden wesentliche Teilergebnisse über die Angebotseffekte der Wissenschaftseinrichtungen in der Region Halle dargestellt; um die Frage beantworten zu können, in welchem Umfang die regionale Wirtschaft von den Wissenschaftseinrichtungen profitiert, werden die...