Poverty Measurement: An Index Related to a Theil Measure of Inequality
评估了多个贫困指数能否满足五个理想性质,发现只有与泰尔不平等指数相关的指数满足全部性质,并通过模拟显示该指数和与变异系数相关的指数能合理排序不同收入转移方案的优劣。
A major problem that arises in measuring poverty is the adequate expression, in a poverty index, of the information from the incomes of individuals below the poverty line. This article evaluates several poverty indexes on the basis of their ability to satisfy five properties desirable for a poverty index. The only index that satisfies all five properties is one related to a Theil measure of inequality. Simulations show that this index and an index related to the coefficient of variation provide appropriate ranks for the desirability of various algorithms for transferring income to the poor.