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Fleming, Lee 1955-

Works: 9 works in 12 publications in 1 language and 11 library holdings
Roles: Author
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Publications about Lee Fleming
Publications by Lee Fleming
Most widely held works by Lee Fleming
Small worlds and regional innovative advantage by Lee Fleming( Book )
3 editions published between 2003 and 2004 in English and held by 2 libraries worldwide
Although small-world networks have attracted much theoretical attention and are widely thought to enhance creativity, fewer empirical studies of their evolution and influence on subsequent innovative productivity exist. Using patent coauthorship data, we illustrate crossovers from large- to small-world structures and the emergence and disappearance of giant components in regional collaboration networks. Based on personal experience and interviews with inventors, we argue that patent coauthorship ties span a wide distribution of strength and information transfer capacity. Because their decay rates vary greatly, a sizeable number of old ties remain viable
Complexity, networks and knowledge flow by Olav Sorenson( Book )
2 editions published between 2003 and 2005 in English and held by 2 libraries worldwide
Because knowledge plays an important role in the creation of wealth, economic actors may attempt to skew the flow of knowledge in their favor. Managers of a firm may seek to spread knowledge widely within their organization but prevent its diffusion to rivals. Regional planners may strive for rapid diffusion of knowledge within a local economy but not beyond it. We ask, "when will knowledge developed in one area of dense social connections such as a firm, a geographic locale, or a technological community tend to diffuse to the edge of that area but not further?" Marrying an understanding of social networks with a view of knowledge transfer as a search process, we argue that the degree of knowledge inequality across social boundaries depends crucially on the nature of the knowledge at hand. Simple knowledge diffuses readily across boundaries because outsiders with poor connection to the source of the knowledge can compensate for their poor access by means of unaided local search. Complex knowledge resists diffusion even within the social circles in which it originated. With knowledge of moderate complexity, however, insiders can achieve diffusion by coupling high-fidelity transmission along social conduits with local search, while interdependencies stymie outsiders who rely more heavily on unaided search. Our core proposition, then, is that knowledge inequality across social boundaries reaches its maximum for knowledge of moderate complexity. To test this hypothesis, we examine patent data and compare citation rates across three types of social boundaries: within versus
Swinging for the fences : aspirations, performance,and technological breakthroughs by Lee Fleming( Book )
1 edition published in 2003 in English and held by 1 library worldwide
The behavioral theory of the firm predicts that poor performance relative to aspirations levels leads to increased effort and search for innovations while high performance relative to aspirations allows search without risk of performance falling below aspirations. The classic behavioral arguments do not specify, however, whether increased search leads to incremental or significant innovations, how low and high performance searches differ, or whether performance relative to aspirations has different effects when those aspirations reflect comparison to historical performance or comparison to relevant others. We argue and present evidence that, holding R & D spending constant, poor and high performance lead to decreased rates of overall patenting but increased the rates of breakthrough patenting. Maximum overall patents and minimum breakthrough patents appear for firms near their reference points. Taken together, breakthroughs are most likely to be invented by firms that are doing very well, relative to their industry, and at the same time, very well or very poorly relative to their own historical performance
Disambiguation and Co-authorship Networks of the U.S. Patent Inventor Database (1975 - 2010) by Ronald Lai( file )
1 edition published in 2011 in English and held by 1 library worldwide
Using a Bayesian supervised learning approach, we identify individual inventors from the U.S. utility patent database, from 1975 to the present. An interface to calculate and illustrate patent co-authorship networks and social network measures is also provided. The network representation does not require bounding the social network beforehand. We provide descriptive statistics of individual and collaborative vari ables and illustrate examples of networks for an individual, an organization, a technology, and a region. The paper provides an overview of the technical algorithms and pointers to the data, code, and documentation, with the hope of further open development by the research community
Science as a map in technological search by Lee Fleming( Book )
1 edition published in 2003 in English and held by 1 library worldwide
A large body of work argues that scientific research increases the rate of technological advance, and with it economic growth. The precise mechanism through which science accelerated the rate of invention, however, remains an open question. Conceptualizing invention as a combinatorial search process, this paper argues that science alters inventors' search processes, by leading them more directly to useful combinations, eliminating fruitless paths of research, and motivating them to continue even in the face of negative feedback. These mechanisms prove most useful when inventors attempt to combine highly coupled components; therefore, the value of scientific research to invention varies systematically across applications. Empirical analyses of patent data support this thesis
A prospect theory model of R&D allocation and invention by Philip Bromiley( Book )
1 edition published in 2003 in English and held by 1 library worldwide
In contrast to the substantial literature on how firms should allocate R & D, less research addresses how managers actually allocate R & D funds across potential projects. We develop two models of R & D resource allocation under risk, based on assumptions of utility maximization and behavioral mechanisms of prospect theory. The models assume consistent but not profit-maximizing behavior and demonstrate how resources, managerial risk propensity, and aspiration reference levels interact to influence the level of R & D spending, the expected number of patents, and the probability of a breakthrough patent. The behavioral assumptions of prospect theory result in predictions of hunger-driven innovative search and breakthroughs; surprisingly, the same assumptions also predict slack-driven search breakthroughs
Noncompetes and inventor mobility : specialists, stars, and the Michigan experiment by Matt Marx( Book )
1 edition published in 2007 in English and held by 1 library worldwide
Several scholars have documented the positive consequences of job-hopping by inventors, including knowledge spillovers and agglomeration and the concentration of spinoffs. This work investigates a possible antecedent of inventor mobility: regional variation in the enforcement of postemployment noncompete covenants. While previous research on non-competes has been largely focused on California and Silicon Valley, we exploit Michigan's inadvertent reversal of its noncompete enforcement legislation as a natural experiment to investigate the impact of noncompetes on mobility. Using the U.S. patent database and a differences-in-differences approach between inventors in states that did not enforce and did not change enforcement of non-compete laws, we find that relative mobility decreased by 34% in Michigan after the state reversed its policies. Moreover, this effect was amplified 14% for "star" inventors and 17% for "specialist" inventors
Science and the diffusion of knowledge by Olav Sørensen( Book )
1 edition published in 2003 in English and held by 1 library worldwide
Scientists, social scientists and politicians frequently credit basic science with stimulating technological innovation, and with it economic growth. To support this idea, researchers have shown that patents based on university research receive more citations a measure of patent importance than those developed outside of academia. That research and much of the rhetoric it supports implicitly assumes that the application of scientific methods enables the invention of higher quality technologies. Another possibility exists. The norm of communismand the related practice of publication may speed the diffusion of information developed in the scientific community. By examining patent data, this paper seeks to determine whether this norm of communication might explain a portion of the citation premium accorded to university and science-based patents. Our analyses suggest that more rapid diffusion may account for much of this effect, a result with important implications for both future research and public policy
The careers and co-authorship networks of U.S. patent-holders, since 1975 by Ronald Lai( file )
1 edition published in 2010 in English and held by 1 library worldwide
We describe disambiguation algorithms that identify individual inventors from the U.S.patent database. The identification enables construction of social networks based on patent co-authorship. We will eventually provide descriptive statistics of individual and collaborative variables and illustrated examples of networks for an individual, an organization, a technology, and a region. The data and code will be publically available for community use and improvement and will enable updating as frequently as new patents are issued
English (12)
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