LOGNORMAL EXTRAPOLATION AND INCOME ESTIMATION FOR POOR BLACK FAMILIES*
研究发现，在估计黑人家庭收入分布的低百分位收入时，假设收入均匀分布会显著低估收入，导致对贫困黑人家庭相对收入水平及决定因素的结论产生误导。
ABSTRACT. In studies of urban and state income distribution, the estimation of percentile incomes within intervals reported by the Bureau of the Census has often been done under the assumption that incomes are uniformly distributed. This paper shows that income may be significantly underestimated if the assumption is applied to lower‐level percentiles in the black family income distribution. Consequently, conclusions about the level and determinants of the relative income of poor black families may be misleading.