TY  - RPRT
        AU  - Behaghel, Luc
AU  - Crépon, Bruno
AU  - Gurgand, Marc
AU  - Barbanchon, Thomas Le
        TI  - Please Call Again: Correcting Non-Response Bias in Treatment Effect Models
        PY  - 2012/Jul/
        PB  - Institute of Labor Economics (IZA)
        CY  - Bonn
        T2  - IZA Discussion Paper
        IS  - 6751
        UR  - https://www.iza.org/publications/dp6751
        AB  - We propose a novel selectivity correction procedure to deal with survey attrition, at the crossroads of the "Heckit" and of the bounding approach of Lee (2009). As a substitute for the instrument needed in sample selectivity correction models, we use information on the number of attempts that were made to obtain response to the survey from each individual who responded. We obtain set identification, but if the number of attempts to reach each individual is high enough, we can come closer to point identification. We apply our sample selection correction in the context of a job-search experiment with low and unbalanced response rates.
        KW  - survey non response
KW  - sample selectivity
KW  - treatment effect model
KW  - randomized controlled trial
        ER  -