The Institute of Public Affairs (IPA) is a public policy think tank based in Melbourne, Australia. It advocates free market economic policies such as privatisation and deregulation of state-owned enterprises, trade liberalisation and deregulated workplaces, climate change skepticism (through its environmental subsidiary the Australian Environment Foundation), and the accountability of non-government organisations (NGOs). In its own words, the Institute believes in "the free market of ideas, the free flow of capital, a limited and efficient government, the rule of law, and representative democracy."