| Titre | Estimations de lois de consommation sur un pseudo-panel d'enquêtes de l'Insee ( 1979,1984,1989) | |
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| Auteur | François Gardes, Nilton Cardoso | |
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Revue | Economie et prévision |
| Numéro | no 126, 1996/5 Analyse des comportements économiques à partir de données de panel | |
| Rubrique / Thématique | Analyse des comportements économiques à partir de données de panel |
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| Page | 111-125 | |
| Résumé anglais |
Estimating Consumption Laws on a Pseudo-Panel of INSEE Surveys (1979, 1984 and 1989)
by Nilton Cardoso and François Gardes
Complete demand systems are generally estimated using aggregate time series due to the non-availability of panel data. These estimates are subject to aggregation biases when the specifications are nonlinear in the variables, to instable parameters over a long period and to the inability to estimate sub-population behaviour laws. We construct a pseudo-panel from three Insee family budget surveys by grouping households into homogenous cells to compare their averages on three different dates in accordance with Deaton's methodology (1985). We suggest technical improvements to deal with heteroscedasticity and the cell definition method. Two-thirds of the cross-sectional income elasticities estimated by a quadratic AI equation differ from the first-difference or within dimension estimated time series elasticities. This discrepancy may reflect the endogeny of the individual effects, which bias the cross-sectional elasticities. The social distribution of consumption, such as it is estimated by comparing rich and poor household consumption structures in a survey, can therefore not be used indiscriminately to forecast changes in consumption over time. Source : Éditeur (via Persée) |
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| Article en ligne | http://www.persee.fr/web/revues/home/prescript/article/ecop_0249-4744_1996_num_126_5_5826 |
