mixture of free market reforms and consensus politics featuring "summits" of government representatives, business leaders, trade unions and non-government organisations in order to reach consensus on key issues such as economic policy and tax reform. The centrepiece of this policy mix was an Accord with trade unions under which wage demands would be curtailed in return for increased social benefits. Welfare payments were increased and better targeted to those on low incomes, and a retirement benefits scheme (superannuation) was extended to most employees. A new universal health insurance scheme, Medicare, was introduced. The Treasurer Paul Keating oversaw a program of deregulation and micro-economic reforms which broke with the Keynesian economics that had traditionally been favoured by the Labor party. These reforms included floating the Australian dollar, deregulating capital markets and allowing competition from foreign banks. Business regulation and competition policy was streamlined, tariffs and quotas on Australian manufactured goods and rural commodities were gradually reduced, and a number of government enterprises and services were progressively privatised. The higher education system was restructured and significantly expanded, partly funded by the reintroduction of fees in the form of student loans and "contributions" (HECS). Paul Kelly concludes that, "In the 1980s both Labor and non-Labor underwent internal philosophical revolutions to support a new set of ideas—faith in markets, deregulation, a reduced role for government, low protection and the creation of a new cooperative enterprise culture." The Hawke Government courted the growing environmental movement with a series of actions including using Federal powers to stop the Franklin Dam development in Tasmania, banning new uranium mines at Jabiluka, and proposing Kakadu National park for world heritage listing. In foreign policy, the Hawke Government maintained strong relations with the US and was instrumental in the formation of the Asia Pacific Economic Cooperation (APEC) group. Australia contributed naval ships and troops to UN forces in the Gulf War after Iraq had invaded Kuwait in 1990.The government complemented its consensus politics with other initiatives aimed at fostering national unity. The Australia Act 1986 eliminated the last vestiges of British legal authority at the Federal level. The Australian Bicentenary in 1988 was the focus of year-long celebrations with multicultural themes. The World Expo 88 was held in Brisbane and a new Parliament House in Canberra was opened. Strong economic growth, falling unemployment, an unstable opposition, and Bob Hawke's popularity with the public contributed to the re-election of the Hawke