2012 Fiscal Year Final Research Report

Estimation of Economy of Scale in Household Consumption: Analysis of Japanese National Survey of Family Income and Expenditure Data

Research Project

Project/Area Number	22530206
Research Category	Grant-in-Aid for Scientific Research (C)
Allocation Type	Single-year Grants
Section	一般
Research Field	Economic statistics
Research Institution	University of Tsukuba
Principal Investigator	ASANO Seki 筑波大学, システム情報系, 教授 (00195653)
Project Period (FY)	2010 – 2012
Keywords	家計規模の経済 / QUAIDS / AIQL / 等価弾力性 / 等価尺度 / 需要システム / AIDS / 全国消費実態調査
Research Abstract	In this study we present a theoretical framework to estimate degree of scale economy in household consumption, and estimate the resulting model from the Japanese data sets. We specify an indirect utility function that capture the relationship between household characteristics and consumption, and derive a demand system. We estimate the system parameters from the Japanese data sets in both aggregated and individual forms. The estimation results enable us to evaluate households’ real income level which reflects the effects of demographic characteristics, and to evaluate how real income distribution and economy of scale changed in the past.

(3 results)