Robert Samuelson agrees with the Obama Administration's top economic advisers that the current measure of poverty in the US--in place since the Sixties--is outdated. But he does not share the view that it is underreporting poor Americans. Rather, as he argues in his Washington Post/Newsweek column, Samuelson believes that immigration skews poverty statistics. And, he writes that the material well being of poor Americans has gone up. But since the poverty line is based on measuring only pre-tax income, it obscures improved living standards. Samuelson: The existing poverty line could be improved by adding some income sources and subtracting some expenses (example: child care). Unfortunately, the administration’s proposal for a “supplemental poverty measure” in 2011—to complement, not replace, the existing poverty line—goes beyond that. The new poverty number would compound public confusion. It also raises questions about whether the statistic is tailored to favor a political agenda. The “supplemental measure” ties the poverty threshold to what the poorest third of Americans spend on food, housing, clothing, and utilities. The actual threshold—not yet calculated—will probably be higher than today’s poverty line. Moreover, this definition has strange consequences. Suppose that all Americans doubled their income tomorrow, and suppose that their spending on food, clothing, housing, and utilities also doubled. That would seem to signify less poverty—but not by the new poverty measure. It wouldn’t decline, because the poverty threshold would go up as spending went up. Many Americans would find this weird: people get richer, but “poverty” stays stuck. Dean Baker , who takes issue with Samuelson's suggestion that the new poverty measures are politically motivated--Samuelson quotes Heritage 's Robert Rector in labeling the new indicator a "propaganda device"--points out that they were developed by the National Academy of Sciences rather than policymakers. Read Defining Poverty Up: How to create more 'poor' here . And for more economists' responses to Samuelson's column, go first to Mark Thoma's blog , where Thoma responds himself, but also notes several others' criticisms of Samuelson's analysis. Surely we will see more robust debate on these issues as the Obama administration moves closer toward adopting the new measures.