Givord, Pauline

Econometric Methods for Public Policy Evaluation - 2015.


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This paper presents an overview of the econometric tools recently developed for empirical ex post policy evaluation. The author begins by emphasising the selection problems involved in evaluation (how to disentangle the real effect of a policy from the individual characteristics of the persons impacted). Next, she examines the practical aspects of policy evaluation, such as access to relevant data, identification hypotheses and interpretation of results. Illustrations are taken from recent empirical papers published in the economic literature. After presenting the Rubin framework for causal inference, the author focuses on the four main empirical designs for evaluation: selection on observables, difference-in-differences, instrumental variables, and regression on discontinuity.