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Registros recuperados: 7
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Endogeneity of acreage choices in input allocation equations: implied problems and a solution AgEcon
Letort, Elodie; Carpentier, Alain.
Replaced with revised version of paper 07/10/09.
Tipo: Conference Paper or Presentation Palavras-chave: Input allocation; Multi-output econometric model; Control function approach; Crop Production/Industries; Production Economics.
Ano: 2009 URL: http://purl.umn.edu/49217
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Accounting for agronomic rotations in crop production: A theoretical investigation and an empirical modeling framework AgEcon
Carpentier, Alain; Gohin, Alexandre; Letort, Elodie.
As far as crop acreage choices are concerned, a consensus seems to exist among agricultural scientists and extension agents: crop rotation effects and the related constraints are major determinants of farmers’ crop choices. Crop rotation effects are inherently dynamic. They are generally ignored in multicrop models with land as an allocable input found in the literature since most of these models are developed within a static framework. The aim of this paper is twofold (i) to propose a new approach and tools for investigating dynamic crop acreage choices accounting for crop rotation benefits and constraints and (ii) to illustrate the impacts of crop rotation effects and constraints on farmers’ acreage choices through simulation examples. The models...
Tipo: Conference Paper or Presentation Palavras-chave: Crop rotation; Dynamic programming; Acreage choice; Crop Production/Industries; Land Economics/Use; Q12; D21; D24; D92.
Ano: 2011 URL: http://purl.umn.edu/103431
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Endogeneity of Acreage Choices in Input Allocation Equation: Implied Problems and a Solution AgEcon
Carpentier, Alain; Letort, Elodie.
Tipo: Conference Paper or Presentation Palavras-chave: Crop Production/Industries.
Ano: 2011 URL: http://purl.umn.edu/114386
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Short-term Marginal Costs in French Agriculture AgEcon
Latruffe, Laure; Letort, Elodie.
Tipo: Conference Paper or Presentation Palavras-chave: Farm Management.
Ano: 2011 URL: http://purl.umn.edu/114385
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On Modelling Acreage Decisions within the Multinomial Logit Framework AgEcon
Letort, Elodie; Carpentier, Alain.
Tipo: Conference Paper or Presentation Palavras-chave: Crop Production/Industries.
Ano: 2009 URL: http://purl.umn.edu/51615
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Modelling acreage decisions within the multinomial logit framework : profit functions and discrete choice models AgEcon
Carpentier, Alain; Letort, Elodie.
The first purpose of this paper is to propose theoretical justifications for using Logit acreage share models. Two approaches are presented: the Logit shares can be derived from a well defined profit function or derived as the result of a set of discrete choices. It is next shown that both theoretical frameworks allow to define generalizations of the standard Logit shares. These generalizations build on developments of the Multinomial Logit framework for modelling discrete choices and seek to define models that are flexible and empirically tractable. Two applications are presented to illustrate the empirical interest of the proposed models. Both use a rotating panel of French farms (1987-2006) and consider the estimation of yield functions, variable input...
Tipo: Conference Paper or Presentation Palavras-chave: Crop Production/Industries; Farm Management.
Ano: 2008 URL: http://purl.umn.edu/6234
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Variable Input Allocation: Why Heterogeneity Matters? AgEcon
Letort, Elodie; Carpentier, Alain.
The allocation of variable inputs among crops is a common problem in applied studies that use farm accountancy data. Standard farm accounting information is typically restricted to aggregate or whole-farm input expenditures; there are usually no details on how these expenditures are split among crops. Most studies employing multi-crop econometric models with land as an allocable fixed input consider generally variable input uses at the farm level (Moore and Negri, 1992). However, the allocation of variable inputs among crops appears to be useful for several objectives, such as to analyze the evolution of gross margins at the crop level, to investigate the empirical validity of a multi-crop econometric model and to provide important information for...
Tipo: Conference Paper or Presentation Palavras-chave: Variable Input Allocation; Heterogeneity; Agricultural and Food Policy; Agricultural Finance; Crop Production/Industries; Farm Management; Research Methods/ Statistical Methods.
Ano: 2010 URL: http://purl.umn.edu/109387
Registros recuperados: 7
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