Conventional learning curves relating unit cost to measures of production experience are estimated for 221 specialty chemicals produced by a Fortune 500 company. Detailed records on cost and R...D coupled with insights from company personnel are used to explain the variation across products in...

This paper assesses the validity and accuracy of firms' backward patent citations as a measure of knowledge flows from public research by employing a newly constructed data set that matches patents to survey data at the level of the research and development lab. Using survey-based measures of...

A critical factor in industrial competitiveness is the ability of firms to exploit new technological developments. We term this ability a firm's absorptive capacity and argue that such a capability not only enables a firm to exploit new extramural knowledge, but to predict more accurately the...

Joglekar, Bohl, and Hamburg (JBH) make two basic sets of criticisms of our paper (Cohen and Levinthal [Cohen, W. M., D. A. Levinthal. 1994. Fortune favors the prepared firm. Management Sci. 40 227--251.]) in their comment. First, they object to two key elements of the model structure: the...

Economists studying innovation and technological change have made significant progress toward understanding firms' profit incentives as drivers of innovation. However, innovative performance in firms should also depend heavily on the pecuniary and nonpecuniary motives of the employees actually...

In this paper, we use data from the Carnegie Mellon Survey on industrial R&D to evaluate for the U.S. manufacturing sector the influence of "public"(i.e., university and government R&D lab) research on industrial R&D, the role that public research plays in industrial R&D, and the pathways...

Entry by spinoffs from incumbent firms is investigated for the laser industry. A model in which spinoffs exploit knowledge from their parents is constructed to explain the market conditions conducive to spinoffs, the types of firms that spawn spinoffs, and the relationship of spinoffs to their...

The agglomeration of the automobile industry around Detroit, Michigan is explained using a theory in which disagreements lead employees of incumbent firms to found spinoffs in the same industry. Predictions of the theory concerning entry and firm survival are tested using data on the origin,...