<Li> In Sweden, the government may call a snap election at will, but the newly elected Riksdag is only elected to fill out the previous Riksdag's term . The last time this option was used was in 1958 . </Li> <Li> Norway is unique among parliamentary systems in that the Storting always serves the whole of its four - year term . </Li> <P> The parliamentary system can be contrasted with a presidential system which operates under a stricter separation of powers, whereby the executive does not form part of, nor is appointed by, the parliamentary or legislative body . In such a system, parliaments or congresses do not select or dismiss heads of governments, and governments cannot request an early dissolution as may be the case for parliaments . There also exists the semi-presidential system that draws on both presidential systems and parliamentary systems by combining a powerful president with an executive responsible to parliament, as for example the French Fifth Republic . </P> <P> Parliamentarism may also apply to regional and local governments . An example is the city of Oslo, which has an executive council (Byråd) as a part of the parliamentary system . </P>

Who has the highest decision making power in the parliamentary system