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| Registros recuperados: 59 | |
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| Tsur, Yacov; Zemel, Amos. |
| We extend Weitzman's (1998) recombinant growth framework to include endogenous R&D decisions. The analysis is carried out in the (knowledge-capital) state space by means of two characteristic curves: one is identified as a turnpike along which growing economies evolve; the other attracts stagnating economies. Sustained growth depends on a condition relating the slopes of the characteristic curves as well as on a minimal endowment requirement. A growing economy reaches the turnpike at a most rapid R&D rate and evolves along it thereafter. In the long run, the rate of growth and the income shares devoted to R&D, saving and consumption approach constant values that depend on the asymptotic characteristic slopes. |
| Tipo: Working or Discussion Paper |
Palavras-chave: Knowledge generation; Combined ideas; Endogenous R&D; Balanced growth; Research Methods/ Statistical Methods; C61; O31; O41. |
| Ano: 2006 |
URL: http://purl.umn.edu/7135 |
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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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| Darmstadter, Joel; Kropp, Brian. |
| Labor productivity in U.S. coal mining increased at an average annual rate of slightly over four percent during the past 45 years. This report examines key factors contributing to that record - particularly, technological innovation in both surface and underground mining and concurrent geographic shifts in U.S. coal production. Health, safety, and environmental regulations introduced in the sixties and seventies, as well as labor unrest, interrupted long-term productivity advance; but the interruption was of limited duration. Although our principal focus is on worker productivity, steady growth in the relative importance of nonlabor inputs underscores the need to consider total factor productivity. The report touches on the productivity record using that... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Coal mining; Productivity; Technological change; Resource /Energy Economics and Policy; Q41; L72; O31. |
| Ano: 1997 |
URL: http://purl.umn.edu/10874 |
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| Newell, Richard G.; Jaffe, Adam B.; Stavins, Robert N.. |
| We develop a methodology for testing Hick's induced innovation hypothesis by estimating a product-characteristics model of energy-using consumer durables, augmenting the hypothesis to allow for the influence of government regulations. For the products we explored, the evidence suggests: (i) the rate of overall innovation was independent of energy prices and regulations, (ii) the direction of innovation was responsive to energy price changes for some products but not for others, (iii) energy price changes induced changes in the subset of technically feasible models that were offered for sale, (iv) this responsiveness increased substantially during the period after energy-efficiency product labeling was required, and (v) nonetheless, a sizeable portion of... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Induced innovation; Energy efficiency; Technological change; Economic incentives; Regulation; Standards; Climate change; Resource /Energy Economics and Policy; L51; O31; O38; Q40; Q20; Q48. |
| Ano: 1998 |
URL: http://purl.umn.edu/10521 |
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| Furtan, William Hartley; Sauer, Johannes. |
| This paper empirically investigates the determinants of firms’ performance in the agri-food sector by using recent survey data for Denmark. Treating sales per employee as a proxy for value addition we estimate several bootstrapped regression models to draw conclusions on the marginal effects of potential performance determinants such as the form and nature of ownership, stage of the food chain and commodity sector, new product development, staff quality, firms’ competitive stance, and elements of firms’ strategy. To draw robust inferences we apply, besides the ordinary heteroscedasticity corrected Tobit ML-estimator, a nonparametric least absolute deviations estimator (LAD/CLAD) based on a quantile regression procedure. The results indicate that we cannot... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Value added; Innovation; Organizational type; Agribusiness; Q13; O31; O33. |
| Ano: 2008 |
URL: http://purl.umn.edu/6422 |
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| Aghion, Philippe; Van Reenen, John; Zingales, Luigi. |
| We find that institutional ownership in publicly traded companies is associated with more innovation (measured by cite-weighted patents). To explore the mechanism through which this link arises, we build a model that nests the lazy-manager hypothesis with career-concerns, where institutional owners increase managerial incentives to innovate by reducing the career risk of risky projects. The data supports the career concerns model. First, whereas the lazy manager hypothesis predicts a substitution effect between institutional ownership and product market competition (and managerial entrenchment generally), the career-concern model allows for complementarity. Empirically, we reject substitution effects. Second, CEOs are less likely to be fired in the face of... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Career Concerns; Innovation; Institutional Ownership; Productivity and R&D; Financial Economics; G20; G32; O31; O32; O33. |
| Ano: 2010 |
URL: http://purl.umn.edu/93414 |
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| Furtan, William Hartley; Sauer, Johannes. |
| This paper investigates empirically the determinants of firms’ performance in the agrifood sector by using recent survey data for Denmark. Treating sales per employee as a proxy for value added we estimate several bootstrapped regression models to draw conclusions on the marginal effects of potential performance determinants such as the form and nature of ownership, stage of the food chain and commodity sector, new product development, staff quality, firms’ competitive stance, and elements of firms’ strategy. To draw robust inferences we apply, besides the ordinary heteroscedasticity corrected Tobit ML-estimator, a nonparametric least absolute deviations estimator (LAD/CLAD) based on a quantile regression... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Value added; Innovation; Organizational type; Food Consumption/Nutrition/Food Safety; Q13; O31; O33. |
| Ano: 2008 |
URL: http://purl.umn.edu/36851 |
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| Howard, Julie A.; Jeje, Jose Jaime; Tschirley, David L.; Strasberg, Paul J.; Crawford, Eric W.; Weber, Michael T.. |
| This report summarizes an appraisal of input utilization and marketing in Mozambique, focusing on the following research questions: (1) What are current smallholder yields for major commodities, and what is the potential for increasing yields through the use of improved technologies? (2) To what extent are improved technologies already being used by smallholders, and is the use of improved technologies profitable? (3) How are improved seeds, fertilizer and pesticides currently produced and distributed? and (4) What are the key constraints and opportunities for increasing the use of improved technologies by smallholders? |
| Tipo: Report |
Palavras-chave: Food security; Food policy; Improved technologies; Farm Management; Downloads July 2008-July 2009: 9; O31. |
| Ano: 1998 |
URL: http://purl.umn.edu/54680 |
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| Registros recuperados: 59 | |
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