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| Registros recuperados: 49 | |
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| Denicolo, Vincenzo; Zanchettin, Piercarlo. |
| We study a quality-ladder model of endogenous growth that produces stochastic leadership cycles. Over a cycle, industry leaders can innovate several successive times in the same industry, gradually increasing the magnitude of their technological lead before being replaced by a new entrant. Initially, new leaders are eager to enlarge their lead and do much of the research, but if they innovate repeatedly, their propensity to invest in R&D decreases. Eventually they stop doing research altogether, and as they are overtaken a new cycle starts. The model generates a skewed firm size distribution and a deviation from Gibrat’s law that accord with the empirical evidence. We also consider various policy measures, showing that in some cases policy should... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Technological Lead; Innovation; R&D; Financial Economics; O32; O4. |
| Ano: 2010 |
URL: http://purl.umn.edu/60683 |
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| Austin, David H.; MacAuley, Molly K.. |
| This paper describes a model for estimating, in a probabilistic framework, expected future consumer surplus from planned new product innovations. The model has been applied to estimations of taxpayer benefits from NASA's New Millenium Program (NMP), which develops new technologies for space science, and to the digital data storage technologies being supported by the Department of Commerce's Advanced Technology Program (ATP). The model uses cost index methods based on consumers' estimated marginal valuation for quality improvements in the technology. Probabilistic values for performance increases are taken from the innovators' own expectations. The analysis reveals the sensitivity of welfare increases to these values, which are assumed to be biased upward.... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Quality-adjusted cost index; Consumer surplus; Innovation; Environmental Economics and Policy; O32; H43; D60. |
| Ano: 1998 |
URL: http://purl.umn.edu/10655 |
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| MacAuley, Molly K.. |
| This study, prepared at the request of the Office of Earth Science at the U.S. National Aeronautics and Space Administration (NASA), describes a general framework for conceptualizing the value of information and illustrates how the framework might be used to value information from earth science data collected from space. The framework serves two purposes. One purpose is provision of a common basis by which to conduct and evaluate studies of the value of earth science information that serves a variety of uses, from improving environmental quality to protecting public health and safety. The second purpose is to better inform decision-makers about the value of data and information. Decision-makers comprise three communities: consumers and producers of... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Value of information; Earth science; Natural resource economics; Resource /Energy Economics and Policy; O32; O38; Q28. |
| Ano: 2005 |
URL: http://purl.umn.edu/10839 |
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| Kolympiris, Christos; Klein, Peter G.; Kalaitzandonakes, Nicholas G.. |
| Why do biotech firms cluster? New and established firms in biotech clusters are said to capitalize on knowledge spillovers, labor-market pooling, and other externalities. Some have even argued that such spillovers are so strong that the cluster itself, rather than the individual, is the locus of entrepreneurship. Such arguments, however, do not resolve the mechanism by which clusters might contribute to the establishment of new firms. This paper proposes a conceptual framework for analyzing the locational choices of entrepreneurial firms in the life-sciences industry. Building on both the cluster literature and the literature on entrepreneurship, we develop hypotheses about how cluster characteristics, the entrepreneurs personal characteristics, and... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Entrepreneurship; Biotechnology; Clusters; Knowledge spillovers; Agglomeration economies; Industrial Organization; L26; L65; O18; O32. |
| Ano: 2007 |
URL: http://purl.umn.edu/9761 |
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| Yang, Hui; Buccola, Steven T.. |
| The central objective of the present paper is to examine how university bioscientists select their research agendas, with special attention to biotechnology firms' influence on those agendas. Among other issues, we will assess UIRs' potential effects on the private appropriability of the characteristics of bioengineered crop and animal varieties, and on the basicness and breadth of a scientist's research. Factors that potentially would affect scientists' research agenda include the university's size, reputation, resources, culture, and total government funding; the scientist's academic position and communication network; and the market power, cultures, and specialties of the biotech firms with which the university has research relationships. An... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Research and Development/Tech Change/Emerging Technologies; O31; O32; O33. |
| Ano: 2003 |
URL: http://purl.umn.edu/21985 |
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| Sedjo, Roger A.. |
| Unlike other resources such as petroleum, coal, and copper, forests are renewable. Yet, in many respects forests historically have been treated as a nonrenewable resource in that forest stocks were depleted or "mined" and loggers moved on to exploit other "deposits." The lands were often put to other uses, typically agricultural, or allowed to regenerate naturally. This paper looks at technical change in forest extraction, i.e., logging under a number of different conditions. It finds that, on average, labor productivity has been increasing in recent decades. However, total factor productivity in the US has declined in recent years. In addition, the study examines the tree-growing potential of plantation forestry. It finds that there is underway a... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Productivity; Resources; Forests; Timber; Technology; Innovations; Plantations; Logging; Genetics; Extraction; Resource /Energy Economics and Policy; O31; O32; O50; O51; Q23. |
| Ano: 1997 |
URL: http://purl.umn.edu/10667 |
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| Registros recuperados: 49 | |
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