题目：Economies of Scale to Consumption in Collective Households
主讲人：Arthur Lewbel, Boston College
Arthur Lewbel is a Professor of Economics at Boston College. He is the inaugural holder of the Barbara A. and Patrick E. Roche Chair in Economics at BC. He is a co-editor of Econometric Theory, a former co-editor of The Journal of Business and Economic Statistics and of Economics Letters, and has also served on the editorial boards of The Journal of Econometrics and The Journal of Applied Econometrics. He is an elected fellow of the Econometric Society, a fellow of the Journal of Econometrics, and has a Multa Scripsit award from Econometric Theory. He is an international research fellow of the Institute for Fiscal Studies (IFS) and of the Centre for Microdata Methods and Practice (CeMMAP). He has repeatedly served on committees to determine winners of the Zellner and Aigner awards for best papers in the Journal of Econometrics, and on the American Statistical Association’s Zellner Thesis award committee.
Prof. Lewbel's research is mainly in the areas of micro econometrics and in consumer demand analysis. He has published in all the top journals in economics and econometrics, including 11 Econometricas, 5 American Economic Reviews, 3 Journal of Political Economy’s, 4 Review of Economic Studies, 17 Journal of Econometrics, and has published in dozens of other journals including Journal of Economic Theory, Journal of the American Statistical Association, Quarterly Journal of Economics, even Conservation Biology and Scientific American. In a published study of over 55,000 economists, he was ranked number 30 in the world, based on quality and quantity of publications.
Goods consumed by household members are often categorized as either private (consumed by individuals, like food) or public (consumed jointly by all members, like heat). Reality is that many goods are not private or public, but are shareable - different amounts are publicly and privately consumed by different members. For example, gasoline is jointly consumed in a family car trip, but privately consumed when a person drives alone.
Household economies of scale requires observing or estimating how much each good is shared in each type of household. Instead of assuming every good is either public or private, BCL (Browning, Chiappori, and Lewbel 2013) allows each good to be shareable to an unknown extent, which must be estimated. Our contribution in this paper is: starting from BCL, we provide a simple, linear least squares estimator of the economies of scale to consumption in collective household models with any number of shareable goods.