A note on the impact evaluation of public policies: the counterfactual analysis

Abstract

This report describes concisely, and in an intuitive way, the policy evaluation framework and the different counterfactual analysis evaluation strategies: propensity score matching, regression discontinuity design, differences-in-differences and instrumental variables. For each method we present the main assumptions it relies on and the data requirements. These methodologies apply to any type of policy and, in general, to any type of intervention. A selection of papers applying this approach in the context of labour market interventions is also included.