Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados AgEcon (2) Autor Paris, Quirino (1) Perali, Carlo Federico (1) Piccoli, Luca (1) Thiele, Silke (1) Palavra-chave Demand and Price Analysis (2) Linear expenditure system (2) Adjusted prices (1) Consumer demand functions (1) Cross-sectional data (1) D0 (1) Expenditure and price elasticities (1) Food demand analysis (1) Generalized Heckman procedure (1) Primal-dual (1) Research Methods/ Statistical Methods (1) Mais... Tipo do documento Journal Article (1) Working or Discussion Paper (1) Ano 2004 (1) 2001 (1) País United States (2) Idioma Alemão (1) Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Ausgaben- und Preiselastizitäten der Nahrungsmittelnachfrage auf Basis von Querschnittsdaten: Eine Systemschätzung für die Bundesrepublik Deutschland AgEcon Thiele, Silke. This study presents a procedure to estimate expenditure and price elasticities of food commodities from cross-sectional data. There are two problems with the use of cross-sectional data: First, priceinformation is not sufficient in these data. To derive “adjusted prices” from cross-sectional data an approach of COX and WOHLGENANT is applied. Second, zero expenditures for some commodity groups can be observed. To avoid selectivity bias a generalization of the HECKMAN procedure is employed. Both, the adjusted prices and the bias correction are included in a Linear Expenditure System. It can be concluded that expenditure and price elasticities could differ significantly between household characteristics. The research results suggest that attempts to use only... Tipo: Journal Article Palavras-chave: Food demand analysis; Expenditure and price elasticities; Cross-sectional data; Adjusted prices; Generalized Heckman procedure; Linear expenditure system; Demand and Price Analysis. Ano: 2001 URL: http://purl.umn.edu/98702 Primal-Dual Estimation of a Linear Expenditure Demand System AgEcon Paris, Quirino; Perali, Carlo Federico; Piccoli, Luca. Efficient estimates require the utilization of all the available theoretical and statistical information. This fact suggests that econometric models based on an explicit optimization theory might achieve more efficient estimates when all the primal and dual relations are used for a joint estimation of the model’s parameters. We present a discussion of this idea using a Linear Expenditure System (LES) of consumer demand. We assume that the risk-neutral household chooses its consumption plan on the basis of expected information. Some time after that decision, the econometrician attempts to measure quantities and prices and in so doing commits measurement errors. Hence, the econometric model is an errors-in-variables nonlinear system of equations for which... Tipo: Working or Discussion Paper Palavras-chave: Consumer demand functions; Primal-dual; Linear expenditure system; Demand and Price Analysis; Research Methods/ Statistical Methods; D0. Ano: 2004 URL: http://purl.umn.edu/93741 Registros recuperados: 2 Primeira ... 1 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco