The likelihood of ahung parliament—that is, a parliament in which no single party enjoys an overall majority—is far greater today than it was, for example, in the 1950s. This is primarily because there are now more MPs from the minority parties.
1998 September,Tim Hames,Mark Leonard, “The Core Problem for the British Monarchy”, inModernising the Monarchy (Arguments;21), London:Demos,→ISBN,page16:
[I]f proportional representation were to be adopted for UK elections, the position could become even more complicated. In the event of ahung Parliament, which could be a regular occurrence under such a voting system, the monarch would have to nominate both the governing party and the prime minister and could face accusations of partisanship.
2015, Jennifer Menzies, Anne Tiernan, “Caretaker Conventions”, in Brian Galligan, Scott Brenton, editors,Constitutional Conventions in Westminster Systems: Controversies, Changes and Challenges, Cambridge:Cambridge University Press,→ISBN,page101:
For Australia and the United Kingdom,hung parliaments, and the long transition period that accompany their formation, have been rare in the post-World War II period.[…] Canada too began a cycle ofhung parliaments from 2004, and this added complexity to what was traditionally a long transition period from election day to the first sitting of the new parliament[…].
2017 June 9, Rajeev Syal, Alan Travis, “What is a hung parliament and what happens now?: TheConservatives have failed to win a majority but[Theresa] May – or her successor as Tory leader – will still try to form a government”, inThe Guardian[1], London, archived fromthe original on9 June 2017:
We are heading for ahung parliament. The UK's first-past-the-post electoral system means balanced parliaments rarely happen in Britain, but it was the case following the 1974 election and most recently in 2010. In the case of ahung parliament, the leader of the party with the most seats is given the opportunity to try to form a government. This can take two forms: one option is a formal coalition with other parties, in which the coalition partners share ministerial jobs and push through a shared agenda. The other possibility is a more informal arrangement, known as "confidence and supply", in which the smaller parties agree to support the main legislation, such as a budget and Queen's speech put forward by the largest party, but do not formally take part in government.
Inmultiparty systems it is unusual that a single party would obtain a majority of theseats in thelegislature. The term may still be used, however, when there are two firmblocs of parties and neither of these wins a majority.
hung parliament on Wikipedia.Wikipedia