Abstract Details
Activity Number:
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583
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Type:
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Invited
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Date/Time:
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Wednesday, August 12, 2015 : 2:00 PM to 3:50 PM
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Sponsor:
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JASA, Applications and Case Studies
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Abstract #314277
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Title:
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Wanna' Get Away? Regression Discontinuity Estimation of Exam School Effects Away from the Cutoff
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Author(s):
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Miikka Rokkanen* and Joshua Angrist
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Companies:
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Columbia University and MIT
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Keywords:
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Applications and Case Studies ;
Regression Discontinuity Designs ;
Instrumental Variables ;
Nonparametric Methods ;
Matching
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Abstract:
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In regression discontinuity (RD) studies, causal effects are nonparametrically identified for those near the cutoff. The effect of treatment on inframarginal applicants is also of interest, but identification of such effects requires stronger assumptions. This paper discusses RD identification away from the cutoff. Our identification strategy exploits the availability of dependent variable predictors other than the running variable. Conditional on these predictors, the running variable is assumed to be ignorable. This identification strategy is used to study effects of Boston exam schools for inframarginal applicants. Identification based on RD-specific conditional independence assumptions produces reasonably precise and surprisingly robust estimates of the effects of exam school attendance on inframarginal applicants. These estimates suggest that the causal effects of exam school attendance for 9th grade applicants with running variable values well away from admissions cutoffs differ little from those for applicants with values that put them on the margin of acceptance. An extension to fuzzy desings is shown to identify causal effects for compliers away from the cutoff.
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Authors who are presenting talks have a * after their name.
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