Inequality of Opportunity in a Multiperiod Framework
提出一个简单模型，用于在多期框架下评估和测度机会不平等，其中环境和努力都可能随时间变化。通过公理方法定义公平分配，并构建多期机会不平等指数，最后应用于韩国收入分配数据。
ABSTRACT This paper offers a simple model to evaluate and measure inequality of opportunity in a multiperiod framework, in which both circumstances and effort may change over time. We adopt a norm‐based approach and an axiomatic methodology: we first characterise two alternative definitions of a ‘fair distribution’, associated respectively with the ex ante and ex post views of equality of opportunity; then we characterise a family of indexes of multiperiod inequality of opportunity expressed as an appropriate distance between the fair and the actual distributions. The proposed framework is then applied to evaluate the Korean distribution of income from a multiperiod and opportunity egalitarian perspective.