Interdistributional Income Inequality
利用不完全矩刻画收入不平等，提出分布间洛伦兹曲线，并基于四种分布间不平等度量，发现过去30年美国黑人与白人之间的分布间不平等显著下降。
Incomplete moments are used to characterize income inequality and provide the basis for interdistributional Lorenz curves. Four measures of interdistributional inequality are considered and seen to be related to an interdistributional welfare interpretation. Based upon these measures, there has been a significant secular decline in interdistributional inequality between blacks and whites over the past 30 years.