Parliamentary elections are held every four years. The 200-member Eduskunta has proportional representation. Presidential elections occur every six years, and the president may only serve two consecutive terms.
The 1919 Constitutional Act grants widespread power to the president. The power of the president offsets the potential instability of the parliament. When taking office, presidents renounce their political party affiliation in order to take precedence over any political skirmishes between the many political parties. The president appoints the prime minister.