EQUIVALENCE SCALES IN A RANK-3 DEMAND SYSTEM

• 成果类型: Article
• 署名作者: PASHARDES, P
• 刊物名称: JOURNAL OF PUBLIC ECONOMICS
• ISSN/ISSBN: 0047-2727
• DOI: 10.1016/0047-2727(94)01465-Z
• 发表日期: 1995
• 页码: 143-158
• 关键词: equivalence scales; RANK-3 DEMAND SYSTEM; Micro data; DEMOGRAPHIC SUBSTITUTION

摘要

In the context of a rank-3 demand system equivalence scales measuring the cost of demographic characteristics independently of the base utility level can be identified from cross-section data without demographic separability restrictions. Although this can also be achieved with a rank-2 demand system that contains a nonlinear log expenditure term in its budget shares, tests performed in a nested framework suggest that the rank-3 demand system approach is empirically superior. The informative structure of the rank-3 demand system is used to estimate a detailed pattern of demographic costs including the cost of single parenthood and economies of scale within the family.