To what extent do firms engage in product line actions simultaneously with actions in other marketing variables? What are the determinants of product line actions? To what extent are product line actions proactive? To what degree are they reactive? How can a firm's product line action elasticity...

A common approach to innovation, parallel search, is to identify a large number of opportunities and then to select a subset for further development, with just a few coming to fruition. One potential weakness with parallel search is that it permits repetition. The same, or a similar, idea might...

This article is a review of work published in Management Science on the topics of technological innovation, product development, and entrepreneurship since the inception of the journal in 1954. We intend the article to serve two goals. First, we hope that it will be useful to doctoral students...

External acquisition of new technology is a growing trend in the innovation and product development process, particularly in high-technology industries, as firms complement internal research and development efforts with aggressive acquisition programs. Yet, despite its importance, there has been...

We model a firm's decisions about product innovation, focusing on the extent to which features should be improved or changed in the succession of models that comprise a life cycle. We show that the structure of the internal and external environment in which a firm operates suggests when to...