WP 2013-13 Cautionary notes on the use of field experiments to address policy issues
Published in 2014 in Oxford Review of Economic Policy, Volume 30, Issue 4.
ABSTRACT: Field experiments are popular again in policy circles. There are various types of field experiments, with complementary strengths and weaknesses for different policy questions. There is also a lot of needless hype about what field experiments can do. More balance in our use of field experiments is called for.