This study examines whether inventors’ past stock of inventions affects the rate at which they produce technological breakthroughs, as well as the role of organizational contingencies in moderating this effect. The breakthrough rate depends on the rate at which an inventor generates inventions and the probability that each of these inventions is a breakthrough. We argue that inventors with larger patent records generate a higher rate of inventions, but the single inventions that they generate each have a lower probability of being a breakthrough. Longitudinal data of 5,144 European inventors and fixed-effects estimation confirm these predictions and reveal that the net effect of the inventors’ stock of past inventions on the breakthrough rate is positive—that is, more established inventors display a higher rate of breakthroughs than brand-new inventors. We also confirm the role of organizational contexts in shaping inventors’ productivity. In particular, firms’ control over research and development targets lessens the advantage of established inventors with regard to the rate of breakthrough generation.

This study investigates the impact of non-competition agreements on the type of R&D activity undertaken by companies. Non-competition agreements, by reducing outbound mobility and knowledge leakages to competitors, make high-risk R&D projects relatively more valuable than low-risk ones. Thus, they induce companies to choose riskier R&D projects, such that corporate inventions are more likely to lie in the tails of the inventions' value distribution (as breakthroughs or failures) and be in novel technological areas. This study uses data about U.S. patent applications from 1990 to 2000 and considers longitudinal variation in the enforcement of non-compete clauses. The results indicate that in states with stricter enforcement, companies undertake riskier R&D paths than in states that do not enforce non-compete agreements as strictly.

This is the unspecified version of the paper.This version of the publication may differ from the final published version. is, the trade of elements of knowledge which are 'disembodied' from individuals, organizations and products. The aims of this paper are to bring together the various streams of research in this area and discuss their major assumptions and limitations, in order to provide a comprehensive framework for understanding the phenomenon, and identify promising paths for future research. We start our review by identifying the object of market exchange -that is, an invention whose knowledge has been codified and disembodied from individuals, organizations or artifacts. We then identify those factors that enable firms to trade inventions, distinguishing between institutional-, firm-, and industry-level factors. We close our analysis of the extant literature by discussing the implications of markets for inventions for firm behavior and performance. Against this background, we highlight an important avenue for future research. A neglected implication of the development of invention markets is that firms are confronted with a wide variety of technological paths from which to choose, because the opportunity to acquire technologies on the market offers them a greater variety that can their internal R&D departments. However, the streams of research on markets for inventions and on R&D allocation strategies have been surprisingly disconnected so far. Hence, in the final section, we start to establish and explore the link between these literatures, and to identify a research agenda in this domain. Permanent repository link3

Please scroll down for article-it is on subsequent pagesWith 12,500 members from nearly 90 countries, INFORMS is the largest international association of operations research (O.R.) and analytics professionals and students. INFORMS provides unique networking and learning opportunities for individual professionals, and organizations of all types and sizes, to better understand and use O.R. and analytics tools and methods to transform strategic visions and achieve better outcomes. For more information on INFORMS, its publications, membership, or meetings visit http://www.informs.org ORGANIZATION SCIENCEAbstract. This paper studies the relationship between two decisions shaping the organizational configuration of a firm: whether to make the upstream resources more general and deployable to more markets (versus keeping them tailored to a few markets) and whether to trade with downstream firms as an upstream supplier of intermediate products and services (versus directly entering downstream markets). Although the literature has looked at these two decisions separately, we argue that they depend on each other. This has the important implication that they can generate organizational complementarities, inducing firms to implement them jointly. We are motivated in particular by the observation that an increasing number of firms invest in general upstream resources and exploit them as upstream suppliers of intermediate services or products-a strategy that we refer to as specialization in generality. Interestingly, prior literature has mostly highlighted the use of general upstream resources to enter new downstream markets. We identify the supply and demand conditions under which specialization in generality is instead more likely to emerge: lack of prior downstream assets on the supply side and a roughly equal distribution of buyers across intermediate markets (a "broad" demand) on the demand side. We test our predictions using a sample of firms in the U.S. laser industry between 1993 and 2001. A regulatory shock that increases the value of trading relative to downstream entry provides the setting for a quasi-natural experiment, which corroborates our theoretical predictions.

This is the unspecified version of the paper.This version of the publication may differ from the final published version. is, the trade of elements of knowledge which are 'disembodied' from individuals, organizations and products. The aims of this paper are to bring together the various streams of research in this area and discuss their major assumptions and limitations, in order to provide a comprehensive framework for understanding the phenomenon, and identify promising paths for future research. We start our review by identifying the object of market exchange -that is, an invention whose knowledge has been codified and disembodied from individuals, organizations or artifacts. We then identify those factors that enable firms to trade inventions, distinguishing between institutional-, firm-, and industry-level factors. We close our analysis of the extant literature by discussing the implications of markets for inventions for firm behavior and performance. Against this background, we highlight an important avenue for future research. A neglected implication of the development of invention markets is that firms are confronted with a wide variety of technological paths from which to choose, because the opportunity to acquire technologies on the market offers them a greater variety that can their internal R&D departments. However, the streams of research on markets for inventions and on R&D allocation strategies have been surprisingly disconnected so far. Hence, in the final section, we start to establish and explore the link between these literatures, and to identify a research agenda in this domain. Permanent repository link3