Political systems vary across different **democracies**, reflecting diverse historical, cultural, and social contexts. Some democracies operate under a **parliamentary** system, where the executive derives its legitimacy from the legislature, while others use a **presidential** system, featuring a clear separation of powers. Additionally, variations can include different electoral systems, such as first-past-the-post or proportional representation, which influence party dynamics and voter engagement. Understanding these differences is vital for comprehending how governance, civic participation, and policy outcomes differ, as each system carries distinct advantages and challenges that shape the democratic experience.