Conservatism has been the dominant ideology of Iceland's politics since the 20th century, most notably under the Independence Party which has been the largest and most influential party in Icelandic politics since its founding in 1929. Unlike conservatism in many other countries, Icelandic conservatism has historically placed far greater emphasis on economic liberalism, national sovereignty, and institutional stability than on social or moral conservatism. Today it is primarily represented by three parties, namely the liberal conservative Independence Party, the agrarian liberal conservative Progressive Party and the conservative-populist Centre Party.