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	Provedor de dados AgEcon (3) Autor Tran, Kien C. (3) Gray, Richard S. (2) Malla, Stavroula (2) Larue, Bruno (1) Yelou, Clement (1) Palavra-chave Agribusiness (1) Applied research (1) Basic research (1) Biotechnology (1) Bootstrap (1) C12 (1) C13 (1) C23 (1) C52 (1) Dairy production (1) O3 (1) Private research expenditures (1) Public research expenditures (1) Research Methods/ Statistical Methods (1) Research and Development/Tech Change/Emerging Technologies (1) Stochastic frontier models (1) Technical efficiency (1) Threshold regression (1) Mais... Tipo do documento Conference Paper or Presentation (3) Ano 2007 (1) 2005 (1) 2003 (1) País United States (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Pecuniary, Non-Pecuniary, and Downstream Research Spillovers: The Case of Canola AgEcon Gray, Richard S.; Malla, Stavroula; Tran, Kien C.. This paper develops an empirical framework for estimating a number of inter-firm and downstream research spillovers in the canola crop research industry. The spillovers include basic research, human capital/ knowledge (as measured through other-firm expenditures), and genetics (as measured through yields of other-firms). The model used to examine spillover effects on research productivity provides evidence that there are many positive inter-firm non-pecuniary research spillovers, which is consistent with a research clustering effect. The second model, which examines spillovers at the level of firm revenue , shows that, while private firms tend to crowd one another, public firm expenditure on basic and applied research creates a crowding-in effect for... Tipo: Conference Paper or Presentation Palavras-chave: Basic research; Applied research; Public research expenditures; Private research expenditures; Biotechnology; Research and Development/Tech Change/Emerging Technologies; O3. Ano: 2005 URL: http://purl.umn.edu/24776 Estimation and Inference for Threshold Effects in Panel Data Stochastic Frontier Models AgEcon Yelou, Clement; Larue, Bruno; Tran, Kien C.. One of the most enduring problems in cross-section or panel data models is heterogeneity among individual observations. Different approaches have been proposed to deal with this issue, but threshold regression models offer intuitively appealing econometric methods to account for heterogeneity. We propose three different estimators that can accommodate multiple thresholds. The first two, allowing respectively for fixed and random effects, assume that the firms’ specific inefficiency scores are time-invariant while the third one allows for time-varying inefficiency scores. We rely on a likelihood ratio test with m − 1 regimes under the null against m regimes. Testing for threshold effects is problematic because of the presence of a nuisance parameter which... Tipo: Conference Paper or Presentation Palavras-chave: Stochastic frontier models; Threshold regression; Technical efficiency; Bootstrap; Dairy production; C12; C13; C23; C52; Research Methods/ Statistical Methods. Ano: 2007 URL: http://purl.umn.edu/9769 AN EMPIRICAL ANALYSIS OF PUBLIC AND PRIVATE SPILLOVERS WITHIN THE CANOLA BIOTECH INDUSTRY AgEcon Gray, Richard S.; Malla, Stavroula; Tran, Kien C.. The study uses firm-specific data in the biotech canola industry to empirically examine research spillovers among public and private firms at the level of research output, research sales revenue, and research social revenue. The non-pecuniary spillovers that are examined include basic research, human capital/ knowledge (as measured through other-firm expenditures) and genetics (as measured through yields of other-firms). The results provide strong empirical evidence of several research spillovers in the biotech crop research industry such as: basic and applied public research creates a positive spillover for private firms at all levels; applied expenditure within-group reduces other-firm revenue while between-group expenditure increases revenue; genetic... Tipo: Conference Paper or Presentation Palavras-chave: Agribusiness. Ano: 2003 URL: http://purl.umn.edu/22137 Registros recuperados: 3 Primeira ... 1 ... Última

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