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PRECI : Modèle de prévisions multisectorielles

Author

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  • Gérard Neel
  • Alain Chaussard

Abstract

[eng] In addition of the traditional approach of macroeconomic forecasting through an analysis of income and demands, this model is particularly devoted to the study of the supply side and intersectorial links. Using informations provided by sectorial specialists, it projects an input-output matrix divided into thirty six sectors of activity; the coherence of the forecats by sectors is attained through correcting each of them according to a given "margin of uncertainty". The importance of investment changes is fully taken into account, through behavioural equations which differ for each sector. This model, still used mainly for real activity forecasts, is currently under extension in the field of prices and value added components forecasting. [fre] Complétant l'approche traditionnelle de la prévision économique sur la base d'une analyse de la formation et de l'utilisation des revenus, ce modèle privilégie l'offre de biens et services, compte tenu des relations intersectorielles. A partir des informations fournies par les spécialistes de chaque secteur et sous 1' hypothèse d'une stabilité suffisante de certaines caractéristiques de l'économie, il projette un tableau Entrées-Sorties en trente six branches d'activité; la cohérence des perspectives relatives à chaque secteur est assurée en corrigeant chacune d'elle proportionnellement à la "marge d'incertitude" qui lui a été affectée. L'importance des phénomènes de variations de stocks a conduit à affiner l'étude sur la base d'équations de comportement différentes suivant les secteurs. Ce modèle, essentiellement utilisé pour la prévision en volume, est approfondi actuellement dans le domaine de la prévision des prix et des éléments de la valeur ajoutée.

Suggested Citation

  • Gérard Neel & Alain Chaussard, 1979. "PRECI : Modèle de prévisions multisectorielles," Revue d'Économie Industrielle, Programme National Persée, vol. 8(1), pages 23-36.
  • Handle: RePEc:prs:recind:rei_0154-3229_1979_num_8_1_1927
    DOI: 10.3406/rei.1979.1927
    Note: DOI:10.3406/rei.1979.1927
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