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L'évolution des rendements céréaliers dans une situation d'efficacité allocative

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  • Dominique Vermersch

Abstract

[ger] Die Entwicklung der Getreideerträge bei leistungsstarkem Faktoreinsatz, . von Dominique Vermesch.. . Die Regulierung des Getreideangebotes stellt eines der wesentlichen Anliegen der Reform der Gemeinsamen Agrarpolitik vom Mai 1992 dar. Somit kommt der kurz- und mittelfristigen Entwicklung der Getreideerträge eine überaus wichtige Bedeutung zu. Sie wird anhand eines parametrischen Modells analysiert, wobei von einem leistungsstarken Faktoreinsatz der Landwirte ausgegangen wird. Die Abnahme der Erträge ist bei den verschiedenen berücksichtigten Fällen zwar nicht von der Hand zu weisen, es wird jedoch das Vorhandensein von Effekten aufgezeigt, die sie hemmen: Flächenstillegung, Situation der abnehmenden Erträge, Situation der Starrheit bei manchen Faktoren, wie der Anbaufläche oder der Arbeit. [eng] Cereal Yield Trends in a Situation of Allocative Efficiency, . by Dominique Vermesch.. . The May 1992 CAP reform makes a top priority of the regulation of the supply of grains. It is therefore essential to understand the short- and medium-run cereal yield trends that could result from the reforms. This paper uses a parametric model assuming efficiency of allocations to estimate the yields. Although the reform prompts low yields for the various cases considered, other elements such as set-aside, the quasi-fixed nature of certain inputs and decreasing returns to scale should create contrary effects. [fre] L'évolution des rendements céréaliers dans une situation d'efficacité allocative, . par Dominique Vermesch.. . La régulation de l'offre céréalière constitue l'un des enjeux essentiels de la réforme de la Politique agricole commune de mai 1992. L'évolution à court et moyen terme des rendements céréaliers s'avère ainsi cruciale. Celle-ci est analysée au moyen d'un modèle paramétrique, les producteurs agricoles étant supposés allocativement efficaces. Si la baisse des rendements apparaît sans ambiguïté pour les divers cas envisagés, il est mis en évidence l'existence d'effets amortisseurs de celle-ci : gel des terres, situation de rendements décroissants, situation de rigidité pour certains facteurs tels que la terre ou le travail. [spa] La evolución de los rendimientos cerealistas en una situación de efîcacia desde una óptica de asignación de recursos, . por Dominique Vermesch.. . La regulación de la oferta cerealista constituye uno de los elementos esenciales en juego de la reforma de la Política agrícola común de Mayo de 1992. La evolución a corto y mediano plazo de los rendimientos cerealistas résulta de ese modo crucial. Esta se analiza mediante un modelo paramétrico, dado que se supone que los productores agrícolas son eficientes desde una óptica de asignación de recursos. Si la baja de los rendimientos aparece sin ambigüedad para los diversos casos contemplados, se evidencia la existencia de efectos amortiguadores de ésta : congelación de las u'erras, situación de rendimientos decrecientes, situación de rigidez para ciertos factores taies como la tierra o el trabajo.

Suggested Citation

  • Dominique Vermersch, 1995. "L'évolution des rendements céréaliers dans une situation d'efficacité allocative," Économie et Prévision, Programme National Persée, vol. 117(1), pages 107-116.
  • Handle: RePEc:prs:ecoprv:ecop_0249-4744_1995_num_117_1_5717
    DOI: 10.3406/ecop.1995.5717
    Note: DOI:10.3406/ecop.1995.5717
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    3. Howard D. Leathers, 1992. "The Market for Land and the Impact of Farm Programs on Farm Numbers," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 74(2), pages 291-298.
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    1. Francois Bonnieux & Dominique Vermersch, 1997. "Économie politique des mesures agri-environnementales," Post-Print hal-01594034, HAL.

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