TY  - RPRT
        AU  - Angelucci, Manuela
AU  - Maro, Vincenzo Di
        TI  - Program Evaluation and Spillover Effects
        PY  - 2015/Apr/
        PB  - Institute of Labor Economics (IZA)
        CY  - Bonn
        T2  - IZA Discussion Paper
        IS  - 9033
        UR  - https://www.iza.org/index.php/publications/dp9033
        AB  - This paper is a practical guide for researchers and practitioners who want to understand spillover effects in program evaluation. The paper defines spillover effects and discusses why it is important to measure them. It explains how to design a field experiment to measure the average effects of the treatment on eligible and ineligible subjects for the program in the presence of spillover effects. In addition, the paper discusses the use of nonexperimental methods for estimating spillover effects when the experimental design is not a viable option. Evaluations that account for spillover effects should be designed such that they explain the cause of these effects and whom they affect. Such an evaluation design is necessary to avoid inappropriate policy recommendations and neglecting important mechanisms through which the program operates.
        KW  - impact evaluation
KW  - spillover effects
KW  - field experiments
KW  - data collection
KW  - Indirect Treatment Effect
KW  - program mechanisms
        ER  -