作者：Heckman, J; Hohmann, N; Smith, J; Khoo, M
作者单位：University of Chicago; National Bureau of Economic Research; Western University (University of Western Ontario)
摘要：This paper considers the interpretation of evidence from social experiments when persons randomized out of a program being evaluated have good substitutes for it, and when persons randomized into a program drop out to pursue better alternatives. Using data from an experimental evaluation of a classroom training program, we document the empirical importance of control group substitution and treatment group dropping out. Evidence that one program is ineffective relative to close substitutes is n...
作者：Ruhm, CJ
作者单位：University of North Carolina; University of North Carolina Greensboro; National Bureau of Economic Research
摘要：This study investigates the relationship between economic conditions and health. Total mortality and eight of the ten sources of fatalities examined are shown to exhibit a procyclical fluctuation, with suicides representing an important exception. The variations are largest for those causes and age groups where behavioral responses are most plausible, and there is some evidence that the unfavorable health effects of temporary upturns are partially or fully offset if the economic growth is long...
