PARETO EXTRAPOLATION USING GROUPED INCOME DATA*
研究发现，对帕累托分布进行OLS回归会高估高收入家庭数量，影响假设检验的可靠性，对研究收入不平等和贫困的学者有警示作用。
ABSTRACT. The distribution of above‐median income groups can be described accurately by OLS regression of the Pareto distribution. The excellent fit of log‐linear regression has led some researchers to conclude that extrapolated income measures in the open end of the distribution are reliable. The analysis of income distribution data for metropolitan areas reveals: (1) that OLS tends to consistently overestimate the number of families in the tail, and (2) that the overestimation can have serious implications for hypothesis testing.