>We've written before in the Planet Money newsletter about growing evidence that our welfare programs may not be up to the task. A study last year by the Califo

>We've written before in the Planet Money newsletter about growing evidence that our welfare programs may not be up to the task. A study last year by the California Policy Lab found evidence that a huge percentage of poverty-stricken Californians are not getting the Earned Income Tax Credit because of the difficulty of filling out tax forms. Mullainathan and his colleagues' work is a reminder that policymakers should recognize the cognitive burden on many of those who live in poverty and make it easier for them to get assistance.