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			Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última ECONOMIC INCENTIVES AND RESOURCE ALLOCATION IN U.S. PUBLIC AND PRIVATE PLANT BREEDING AgEcon Fuglie, Keith O.; Walker, Thomas S.. Private investment in plant breeding has been increasing while public plant breeding has stagnated or declined. Moreover, research investment among crop commodities is uneven. Using a comprehensive survey of U.S. plant breeders from 1994, we use a simultaneous equations model to examine incentives and public-private tradeoffs in plant breeding research among 84 crop commodities. Allocation of private breeders among crops is strongly influenced by market size, hybrid seed technology, and ease of breeding improvement. In general, the allocation of public breeders does not appear to "crowd out" private breeders, but some competition may occur in applied breeding. Public breeding declines as private breeding increases on a commodity. Public breeding is... Tipo: Journal Article Palavras-chave: Agricultural research policy; Hybrid seed; Plant breeders; Three stage least squares; Tobit; Research and Development/Tech Change/Emerging Technologies; Q160; L330; O310; O320. Ano: 2001 URL: http://purl.umn.edu/15453 The meat market in Brazil: a partial equilibrium model AgEcon Souza, Geraldo da Silva e; Alves, Eliseu Roberto de Andrade; Gazzola, Rosaura; Marra, Renner. A partial equilibrium model for the meat market is fit to Brazilian data by three stages least squares. The model is consistent with the data and may be used for simulation purposes. In this context we compare model simulations for the near future with the OECD/ Aglink outlook. To illustrate using the model for simulations in policy assessments, we investigate the effect of a relative increase in corn price on the poultry and pork markets, coeteris paribus. Tipo: Journal Article Palavras-chave: Meat markets; Elasticities; Three stage least squares; Simultaneous system of equations.; Agribusiness; C 32. Ano: 2008 URL: http://purl.umn.edu/61201 The meat market in Brazil: a partial equilibrium model Rev. Econ. Sociol. Rural Souza,Geraldo da Silva e; Alves,Eliseu; Gazzola,Rosaura; Marra,Renner. A partial equilibrium model for the meat market is fit to Brazilian data by three stages least squares. The model is consistent with the data and may be used for simulation purposes. In this context we compare model simulations for the near future with the OECD/ Aglink outlook. To illustrate using the model for simulations in policy assessments, we investigate the effect of a relative increase in corn price on the poultry and pork markets, coeteris paribus. Tipo: Info:eu-repo/semantics/article Palavras-chave: Meat markets; Elasticities; Three stage least squares; Simultaneous system of equations. Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-20032008000400011 Registros recuperados: 3 Primeira ... 1 ... Última

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