Panel and Pseudo-Panel Estimation of Cross-Sectional and Time Series Elasticities of Food Consumption
食品消费截面与时间序列弹性的面板及伪面板估计
This article addresses the problem of the bias of income and expenditure elasticities estimated on pseudopanel data caused by measurement error and unobserved heterogeneity. We gauge these biases empirically by comparing cross-sectional, pseudo-panel, and true panel data from both Polish and U.S. 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…