Panel and Pseudo-Panel Estimation of Cross-Sectional and Time Series Elasticities of Food Consumption: The Case of American and Polish Data
| Autor: | Gardes, François, Duncan, Greg, Gaubert, Patrice, Gurgand, Marc, Starzec, Christophe |
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| Rok vydání: | 2007 |
| Předmět: | |
| Zdroj: | Journal of Business & Economic Statistics 23, 2 (2005) 242-253 |
| Druh dokumentu: | Working Paper |
| Popis: | The problem addressed in this article is the bias to income and expenditure elasticities estimated on pseudo-panel data caused by measurement error and unobserved heterogeneity. We gauge empirically these biases by comparing cross-sectional, pseudo-panel and true panel data from both Polish and American expenditure surveys. Our results suggest that unobserved heterogeneity imparts a downward bias to cross-section estimates of income elasticities of at-home food expenditures and an upward bias to estimates of income elasticities of away-from-home food expenditures. "Within" and first-difference estimators suffer less bias, but only if the effects of measurement error are accounted for with instrumental variables. Comment: 12 p |
| Databáze: | arXiv |
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