In a parliamentary vote, the members of parliament (MPs) vote on various measures. They are usually voting for a specific candidate representing a political party, but they can also vote for an individual or no-party-attached candidates. They may also rank their choices of candidates in order of preference. This method of voting is a form of direct popular participation and, because of its transparency, is often used in representative bodies.
The legislative branch of a parliamentary system typically operates through a unicameral or bicameral legislature, whose members are elected by plurality. This type of democracy is often referred to as a republic. Parliamentary systems can operate with either a hereditary monarchy, as in Great Britain and Japan, or with an elected president or chancellor, as in the United States, Germany, Italy and Spain. In most parliamentary systems, the roles of the executive and legislative branches are blurred or merged into a single executive head of government, known as a prime minister, who is selected by the majority of the legislature’s membership.
The electoral system can be based on territorial or functional constituencies, though most do not use either type of arrangement. A major feature of a parliamentary system is that it allows minorities and other factions to receive representation in the legislature. This prevents the majority from excluding minority groups, which can create social and political tensions. In addition, a parliamentary system’s ability to form coalitions ensures that all parties, large and small, have some control over the policies being implemented by the country.