Studies evaluating incentive programs for residential energy efficiency are examined to assess the roles of the size and type of incentive and of nonfinancial aspects of the programs and to infer lessons for policy. Larger incentives are found to increase participation, but marketing and...

Effective early childhood intervention and child care policies should be based on an understanding of the effects of child care quality and type on child well-being. This article describes methods for securing unbiased estimates of these effects from nonexperimental data. It focuses on...