Efficient Estimation of Semiparametric Equivalence Scales With Evidence From South Africa
提出半参数方法估计家庭等价尺度，允许同时估计多种家庭类型和商品，并检验基数独立性假设，应用于南非数据发现结果基本支持该假设。
AbstractWe propose semiparametric procedures for estimation and testing of base-independent equivalence scales. The partial linear index specification permits simultaneous estimation across multiple household types and multiple goods and also the incorporation of continuous and discrete household attributes. Furthermore, asymptotic properties of estimated equivalence scales and tests of base independence are readily obtained. The efficiency gains from the proposed models and estimators are particularly helpful for developing country data where there is often much greater variation in household size and composition. We apply the techniques to South African data and find the results to be broadly consistent with base independence.KEY WORDS: Base independenceEquivalence scalesPartial linear index model