Some Methodological Issues in the Implementation of Subjective Poverty Definitions
研究了收入低报和样本选择偏差对两种主观贫困线（主观贫困线和莱顿贫困线）估计的影响，发现两者都有显著偏差，并提出了修正方法，使调整后的贫困线相当准确，同时为相关调查问卷设计提供了建议。
This paper discusses an investigation of the effects of systematic underreporting of income and of sample selectivity on the estimated levels of two subjective definitions of poverty: the so-called subjective poverty line and the Leyden poverty line. Both turn out to have substantially biasing effects. We present methods to remedy the biases. The resulting adjusted poverty lines prove to be quite accurate. Furthermore, we make suggestions for the design of questionnaires that are used in the surveys on which these poverty definitions are based.