Implementing Multilateral Environmental Agreements: An Analysis of EU Directives

While a number of different theoretical models have been advanced to explain why states implement-or, indeed, do not implement-multilateral environmental agreements (MEAs), very little empirical work has been undertaken to validate their predictions. With a view to narrowing this gap, the present article adopts a large-N, econometric approach to test the explanatory power of four distinct models of compliance-domestic adjustment, reputational, constructivist and managerial-in the context of European Union (EU) environmental policy. Using data on the number of ofıcial infringements received by 15 member states for non-implementation of environmental directives over the period 1979-2000, we ınd that all four models make a statistically signiıcant contribution to explaining spatio-temporal differences in legal implementation. Thus, our results suggest that the implementation of MEAs is shaped by a combination of rational calculations of domestic compliance costs and reputational damage, domestically institutionalized normative obligations, and legal and political constraints. We conclude by suggesting a greater need for multi-causal theoretical models of supranational legal compliance. (c) 2007 by the Massachusetts Institute of Technology.