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Discussion Papers

Title: Filtered and Unfiltered Treatment Effects with Targeting Instruments
Author(s): Lee, Sokbae ; Salanie, Bernard
Academic Year: 2019-2020
Abstract

Multivalued treatments are commonplace in applications. We explore the use of discrete-valued instruments to control for selection bias in this setting. We establish conditions under which counterfactual averages and treatment effects are identified for heterogeneous complier groups. These conditions restrict (i) the unobserved heterogeneity in treatment assignment, (ii) how the instruments target the treatments, and optionally (iii) the extent to which counterfactual averages are heterogeneous. We allow for limitations in the analyst’s information via the concept of a filtered treatment. Finally, we illustrate the usefulness of our framework by applying it to data from the Student Achievement and Retention Project and the Head Start Impact Study.

Fields: econometrics, labor economics
1022 International Affairs Building (IAB)
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420 West 118th Street
New York, NY 10027
Ph: (212) 854-3680
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1022 International Affairs Building (IAB)

Mail Code 3308

420 West 118th Street

New York, NY 10027

Ph: (212) 854-3680
Fax: (212) 854-0749
Business Hours:
Mon–Fri, 9:00 a.m.–5:00 p.m.
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