The structure of government significantly affects public policy implementation by determining how power and responsibilities are distributed among various branches and levels of government. In a federal system, for instance, policy-making may involve collaboration between national and state governments, influencing the efficiency and effectiveness of policies. A centralized government may streamline policy execution but could overlook local needs. Conversely, a decentralized structure allows for greater community input but may result in inconsistencies across regions. The interplay of these governmental structures ultimately shapes how policies are formulated, executed, and evaluated.