期刊
JOURNAL OF ECONOMETRICS
卷 208, 期 2, 页码 468-486出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jeconom.2018.10.004
关键词
Sharp regression discontinuity; Fuzzy regression discontinuity; Treatment effect heterogeneity
资金
- Ministry of Science and Technology of Taiwan, Taiwan [MOST103-2628-H-001-001-MY4]
- Career Development Award of Academia Sinica, Taiwan [AS-CDA-104-H01]
- Institute for Social Sciences of the University of California, Davis
- Hellman Fellows Award
Treatment effect heterogeneity is frequently studied in regression discontinuity (RD) applications. This paper proposes, under the RD setup, formal tests for treatment effect heterogeneity among individuals with different observed pre-treatment characteristics. The proposed tests study whether a policy treatment (1) is beneficial for at least some subpopulations defined by pre-treatment covariate values, (2) has any impact on at least some subpopulations, and (3) has a heterogeneous impact across subpopulations. The empirical section applies the tests to study the impact of attending a better high school and discovers interesting patterns of treatment effect heterogeneity neglected by previous studies. (C) 2018 Elsevier B.V. All rights reserved.
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