centre for microdata methods and practice

ESRC centre

cemmap is an ESRC research centre


Keep in touch

Subscribe to cemmap news

Direct estimation of policy impacts

Authors: Hidehiko Ichimura and Christopher Taber
Date: 03 April 2000
Type: cemmap Working Paper, W00/05
DOI: 10.1920/wp.ifs.2000.0005


This paper specifies a general set of conditions under which the impacts of a policy can be identified using data generated under a different policy regime. We show that some of the policy impacts can be identified under relatively weak conditions on the data and structure of a model. Based on the identification result we develop estimators of policy impacts. We discuss a nonparametric method to implement the estimation but also discuss semparametric methods in order to reduce the conditioning dimension. We then provide an empirical example of the impact of tuition subisdies using the ideas. While the framework used in this paper is fairly narrow, we believe this approach can be applied to a broad set of problems. Download full version

Search cemmap

Search by title, topic or name.

Contact cemmap

Centre for Microdata Methods and Practice

How to find us

Tel: +44 (0)20 7291 4800

E-mail us