Using Experiments to Evaluate Performance Standards
探讨如何利用实验数据评估社会项目的绩效标准，以联邦福利改革为例，说明仅靠实验数据推断有限，但结合选择过程信息可判断标准能否达标。
Abstract This paper examines how experimental demonstrations can be used to inform planners about the efficacy of social programs in light of a performance standard. The problem is illustrated by considering the situation faced by state governments attempting to design programs to meet the new federal welfare-to-work standards. Data from experimental evaluations alone allow only limited inferences about the labor market outcomes of welfare recipients. Combined with prior information on the selection process, however, these data are informative, suggesting either that the long-run federal requirements cannot be met or that these standards will only be met under special circumstances.