We investigated how the knowledge capabilities of industry incumbents affected the generation, development, and performance of "spin-outs" (entrepreneurial ventures of ex-employees). Analyses of 1977-97 data from the disk drive industry supported our hypothesis that incumbents with both strong technological and market pioneering know-how generate fewer spin-outs than firms with strength in only one of these areas. Also, an incumbent's capabilities at the time of a spin-out's founding positively affect the spin-out's knowledge capabilities and its probability of survival.

S trategic renewal, although critical for the sustained success of organizations, has received relatively little attention as distinct from the more general phenomenon of strategic change. Like all strategic issues, strategic renewal presents both opportunities and challenges for organizations. In this article, we first define the term "strategic renewal" and elaborate on important characteristics of this phenomenon. We also bring to bear evidence that suggests that strategic renewal has a critical impact not only on individual firms and industries but also on entire economies. We then provide an in-depth example of a company that has successfully renewed itself more than once, namely, IBM. Finally, we examine several different avenues for strategic renewal, involving both content and process, and identify common themes among them.

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A wave of empirical studies has recently emerged showing that smaller-scale entry is confronted with a lower likelihood of survival than their larger counterparts. The purpose of this paper is to examine whether the relationship between size of a ¢rm when entering an industry and the likelihood of survival holds under di¡erent technological conditions and across the di¡erent stages of the industry life cycle. The empirical evidence suggests that the relationship between ¢rm size and the likelihood of survival is shaped by technology and the stage of the industry life cycle. While the likelihood of survival confronting small entrants is generally less than that confronting their larger counterparts, the relationship does not hold for mature stages of the product life cycle, or in technologically intensive products. In mature industries that are still technologically intensive, entry may be less about radical innovation and possibly more about ¢lling strategic niches, thus negating the impact of entry size on the likelihood of survival.

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Questioning the underlying assumptions of the process of creative destruction, we conceptualize an alternative process of creative construction that may characterize the dynamics between entrants and incumbents. We discuss the underlying mechanism of knowledge spillover strategic entrepreneurship whereby knowledge investments by existing organizations, when coupled with entrepreneurial action by individuals embedded in their context, results in new venture creation, heterogeneity in performance and subsequent growth in industries, regions and economies. The framework has implications for future research in entrepreneurship, strategy and economic growth.

In contrast to the prevailing supply-side explanation that price decreases are the key driver of a sales takeoff, we argue that outward shifting supply and demand curves lead to market takeoff. Our fundamental idea is that sales in new markets are initially low because the first commercialized forms of new innovations are primitive. Then, as new firms enter, actual and perceived product quality improves (and prices possibly drop), which leads to a takeoff in sales. To provide empirical evidence for this explanation, we explore the relationship between takeoff times, price decreases, and firm entry for a sample of consumer and industrial product innovations commercialized in the United States over the past 150 years. Based on a proportional hazards analysis of takeoff times, we find that new firm entry dominates other factors in explaining observed sales takeoff times. We interpret these results as supporting the idea that demand shifts during the early evolution of a new market due to nonprice factors is the key driver of a sales takeoff.new product development, firm entry, enterpreneurship