This paper evaluates the role of regional cluster composition in the economic performance of industries, clusters and regions. On the one hand, diminishing returns to specialization in a location can result in a convergence effect: the growth rate of an industry within a region may be declining...

This paper analyzes the relationship between incumbency and R&D incentives in the context of a model of technological competition in which technologically successful entrants are able to license their innovation to (or be acquired by) an incumbent. That such a sale should take place is natural,...

This paper considers the impact of the intellectual property (IP) system on the timing of cooperation/licensing by start-up technology entrepreneurs. If the market for technology licenses is efficient, the timing of licensing is independent of the patent grant date, and productive efficiency...

We analyze the relationship between incumbency and innovative activity in the context of a model of technological competition in which successful entrants are able to license their innovation to (or be acquired by) an incumbent. That such a sale ought to take place is natural since the...

We evaluate the sources of transitory market power in personal computers in the late 1980s to explain how high rates of imitative entry coexisted with high rates of innovative investment. We measure the impact of different principles of differentiation (PDs); each PD reflects a distinct notion...

This paper presents a synthetic framework identifying the central drivers of start-up commercialization strategy and the implications of these drivers for industrial dynamics. We link strategy to the commercialization environment - the microeconomic and strategic conditions facing a firm that is...

This paper studies alternative empirical strategies for estimating the effects of organization design practices on performance, as well as the factors which determine organizational design, in a cross-section of firms. Our economic model is based on a firm where multiple organizational design...

The main goal of this paper is to develop an empirical framework for evaluating the patient welfare benefits arising from pharmaceutical innovation. Extending previous studies of the welfare benefits from innovation (Trajtenberg, 1990; Hausman, 1996), this paper unpacks the separate choices made by...

This paper studies the consequences of physician authority on pharmaceutical prescribing. Physicians engage in a costly process of particular conditions and characteristics. The relative efficiency of this matching process results from the diagnostic skill of the physician along with the...

This paper evaluates the sources of transitory market power in the market for personal computers (PCs) during the late 1980's. Our analysis is motivated by the coexistence of low entry barriers into the PC industry and high rates of innovative investment by a small number of PC manufacturers. We...