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La production agricole répond-elle aux prix ?

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  • Jean-Marc Boussard

Abstract

[eng] For the vast majority of professional economists, it is quite natural to think of the elasticity of supply with respect to price as being positive. The same idea is a matter of controversis among agricultural economists. Often, it is alleged that the rationality is radically different for peasants and capitalists entrepreneurs. . It is nevertheless possible to give account of observed facts within the strict neoclassical framework, but this requires a long run, dynamic point of view, and the explicit intervention of financial and security constraints at farm level. . Various consequences for the estimation of supply functions may be derived. Especially, because the elasticity of supply is likely to vary greatly across time, it is difficult, and probably misleading to make use of a large number of observations from the past in order to estimate them by regression. Therefore, the recourse to statistical inference should be kept to a minimum level when estimating responses or aggregate production functions. [fre] Est-il possible que l'élasticité de l'offre de certains produits agricoles par rapport au prix soit nulle ou négative? On peut répondre affirmativement à cette question sur la base des critiques marxistes ou structuralistes de la théorie néoclassique. Mais cette dernière rend compte tout aussi bien, et peut-être mieux que les autres, de cette possibilité. 1 1 suffit pour cela d'en prendre une version plus élaborée que celle qui suppose que les agriculteurs maximisent leur profit sur un ensemble convexe. . En outre, les modèles empiriques construits pour tester cette hypothèse ne semblent pas la confirmer, du moins dans la plupart des cas. Il reste que les analyses présentées à cette occasion permettent d'édifier une théorie des cycles «en toile d'araignée» beaucoup plus satisfaisante que celle qui repose sur les erreurs d'anticipation.

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File URL: http://dx.doi.org/10.3406/ecoru.1985.3157
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File URL: http://www.persee.fr/articleAsPDF/ecoru_0013-0559_1985_num_167_1_3157/ecoru_0013-0559_1985_num_167_1_3157.pdf?mode=light
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Bibliographic Info

Article provided by Programme National Persée in its journal Économie rurale.

Volume (Year): 167 (1985)
Issue (Month): 1 ()
Pages: 20-27

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Handle: RePEc:prs:recoru:ecoru_0013-0559_1985_num_167_1_3157

Note: DOI:10.3406/ecoru.1985.3157
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Web page: http://www.persee.fr/web/revues/home/prescript/revue/ecoru

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