Regulatory policy is the academic field dedicated to the systematic study of how governments and related authorities design, implement, and evaluate rules and standards to influence behavior and achieve public objectives. This research area investigates the processes by which regulatory interventions are formulated, the choice and impact of various regulatory instruments (such as command-and-control, market-based, and informational tools), the roles of diverse actors (including state agencies, regulated entities, and civil society), and the social, economic, and political outcomes of regulatory action. Key characteristics include its interdisciplinary nature, drawing insights from political science, economics, law, and sociology, and its focus on understanding mechanisms of state intervention distinct from traditional legislative or fiscal policy. Its significance lies in providing theoretical and empirical frameworks for analyzing governance challenges, addressing market failures and externalities, ensuring safety and fairness, and understanding the dynamics of state-society relations in complex systems.