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Definition. According to David Easton, "A political system can be designated as the interactions through which values are authoritatively allocated for a society". Political system refers broadly to the process by which laws are made and public resources allocated in a society, and to the relationships among those involved in making these decisions.
Every political system is embedded in a particular political culture. Lucian Pye's definition is that "Political culture is the set of attitudes, beliefs, and sentiments, which give order and meaning to a political process and which provide the underlying assumptions and rules that govern behavior in the political system".
To define the system in practice, liberal democracies often draw upon a constitution, either formally written or uncodified, to delineate the powers of government and enshrine the social contract. After a period of sustained expansion throughout the 20th century, liberal democracy became the predominant political system in the world.
The United States is a constitutional federal republic, in which the president (the head of state and head of government ), Congress, and judiciary share powers reserved to the national government, and the federal government shares sovereignty with the state governments. The federal government is divided into three branches, as per the specific ...
Politics portal. v. t. e. A parliamentary system, or parliamentary democracy, is a system of democratic government where the head of government (who may also be the head of state) derives their democratic legitimacy from their ability to command the support ("confidence") of the legislature, typically a parliament, to which they are accountable.
Liberal democracy emphasizes the separation of powers, an independent judiciary, and a system of checks and balances between branches of government. Multi-party systems with at least two persistent, viable political parties are characteristic of liberal democracies.
Definition. Comparative politics is the systematic study and comparison of the diverse political systems in the world. It is comparative in searching to explain why different political systems have similarities or differences and how developmental changes came to be between them. It is systematic in that it looks for trends, patterns, and ...
A party system is a concept in comparative political science concerning the system of government by political parties in a democratic country. The idea is that political parties have basic similarities: they control the government, have a stable base of mass popular support, and create internal mechanisms for controlling funding, information and nominations.