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1 We thank Robert Lalonde for providing us with the data from his 1986 study. We thank Rajeev Dehejia for providing us with information helpful in reconstructing the samples used in the Dehejia and Veall and two anonymous referees for useful comments. Jingjing Hsee and Miana Plesca provided excellent research assistance. We are grateful to James Heckman for(More)
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Existing studies of the effects of college quality on earnings typically rely on a single proxy variable for college quality. This study questions the wisdom of this approach given that a single proxy likely measures college quality with substantial error. We begin by considering the parameter of interest and its relation to the parameter estimated in the(More)
Active labor market policies aim to affect the outcomes – earnings, employment, health, etc. – of those who participate in them. The task of evaluation research lies in devising methods to reliably estimate their effects on those outcomes, so that informed decisions about program expansion and termination can be made. The past thirty years have witnessed(More)
for their suggestions, along with two anonymous referees. The views expressed herein are those of the authors and not necessarily those of the National Bureau of Economic Research. All rights reserved. Short sections of text, not to exceed two paragraphs, may be quoted without explicit permission provided that full credit, including © notice, is given to(More)
Any opinions expressed here are those of the author(s) and not those of the institute. Research disseminated by IZA may include views on policy, but the institute itself takes no institutional policy positions. The Institute for the Study of Labor (IZA) in Bonn is a local and virtual international research center and a place of communication between(More)
Any opinions expressed here are those of the author(s) and not those of the institute. Research disseminated by IZA may include views on policy, but the institute itself takes no institutional policy positions. The Institute for the Study of Labor (IZA) in Bonn is a local and virtual international research center and a place of communication between(More)
This chapter reviews the effects of performance management systems in federally sponsored employment and training programs. We focus on programs for the disadvantaged because they have the longest history, but the lessons generalize to other programs. We find in our survey that most of the evidence on the effects of performance systems relates to their(More)
This paper makes two primary contributions to the literature on policy experiments. First, we demonstrate the usefulness of models as tools with which to draw policy implications from small-scale social experiments. Second, we illustrate the usefulness of social experiments as tools to evaluate models. We apply our methodology to the study of the Canadian(More)