The Mixing Problem in Programme Evaluation
A common concern of evaluation studies is to learn the distribution of outcomes when a specified treatment policy, or assignment rule, determines the treatment received by each member of a specified population. Recent studies have emphasized evaluation of policies providing the same treatment to all members of the population. In particular, experiments with randomized treatments have this objective. Social programmes mandating homogeneous treatment of the population are of interest, but so are ones in which treatment varies across the population. This paper examines the use of empirical evidence on programmes with homogeneous treatments to infer the outcomes that would occur if treatment were to vary across the population. Experimental evidence from the Perry Pre-school Project is used to illustrate the inferential problem and the main findings of the analysis. Copyright 1997 by The Review of Economic Studies Limited.
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Volume (Year): 64 (1997)
Issue (Month): 4 (October)
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References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Manski, C.F., 1990. "The Selection Problem," Working papers 90-12, Wisconsin Madison - Social Systems.
- Robinson, Chris, 1989. "The Joint Determination of Union Status and Union Wage Effects: Some Tests of Alternative Models," Journal of Political Economy, University of Chicago Press, vol. 97(3), pages 639-67, June.
- Bjorklund, Anders & Moffitt, Robert, 1987. "The Estimation of Wage Gains and Welfare Gains in Self-selection," The Review of Economics and Statistics, MIT Press, vol. 69(1), pages 42-49, February.
- Horowitz, J.L. & Manski, C.F., 1992.
"Identification and Robustness in the Presence of Errors in Data,"
92-05, University of Iowa, Department of Economics.
- Horowitz, J.L. & Manski, C.F., 1992. "Identification and Robustness in the Presence of Errors in Data," Working papers 9209, Wisconsin Madison - Social Systems.
- Heckman, James J & Honore, Bo E, 1990. "The Empirical Content of the Roy Model," Econometrica, Econometric Society, vol. 58(5), pages 1121-49, September.
- Manski, C.F. & Sandefur, G.D. & Mclanahan, S. & Powers, D., 1990. "Alternative Estimates Of The Effect Of Family Stucture During Adolescence On Hight School Graduation," Working papers 90-31, Wisconsin Madison - Social Systems.
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