PR leads to weaker government.  Typically under PR, no one party gains a majority of the popular vote, so coalition governments have to be formed often between four or more parties. This tends to produce unstable governments, changing as parties leave or join the governing coalition, and frequent elections. Governments are unable to put a clear, positive legislative agenda in place over several years or act decisively in time of crisis. Compare this to the strong governing majorities produced by FPTP, such as the Conservatives in the 1980s in the UK, which allowed them to push through unpopular but necessary policies, such as tackling trade unions and reducing inflation.