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Randomization and Social Policy Evaluation Revisited

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This paper considers the evidence on the effectiveness and limitations of randomized controlled trials in economics. I revisit my previous paper "Randomization and Social Policy Evaluation" and update its message. I present a brief history of randomization in economics and identify two waves of enthusiasm for the method as "Two Awakenings" because of the near-religious zeal associated with both waves. I briefly summarize the lessons of the first wave and forecast the same lessons will be learned in the second wave.

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  • James J. Heckman, 1991. "Randomization and Social Policy Evaluation Revisited," NBER Technical Working Papers 0107, National Bureau of Economic Research, Inc.
    • Handle: RePEc:nbr:nberte:0107
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    • C93 - Mathematical and Quantitative Methods - - Design of Experiments - - - Field Experiments

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