The document discusses various theories of compliance that explain why states, firms, and individuals adhere to or violate international and domestic laws, especially regarding environmental protection and sustainable development. It categorizes these theories into rationalist models focused on deterrence and normative models emphasizing cooperation and legal legitimacy, while recognizing the interplay between international and domestic compliance frameworks. The authors argue that understanding compliance behavior requires recognizing the motivations behind actions and the complexities of governance involving multiple actors and influences.