We propose the use of a three-level random intercept model to measure the degree of environmental policy performance of different countries and to study its determinants. Inspired by the literature on multilevel latent models and Item Response Theory (IRT), this framework treats policy...

Economists argue that such market-based policy instruments as environmental taxes and emission trading systems are the best way to target the negative effects of pollution. Yet there is no agreement about whether the use of these instruments is sufficient, whether they are deployed efficiently,...