Next month the international club of rich nations, the G20, will meet in Australia. For much of the past decade the host nation boasted one of the strongest economies in the developed world, but not anymore. Australia has been badly hit by falling commodity prices and China's economic slowdown. Hardtalk speaks to the country's Treasury Minister, Joe Hockey. Should Australians brace themselves for a prolonged period of economic pain?(Photo: Joe Hockey, Australian Treasurer and Chair of the G20 Finance Track, 2014. Credit: Drew Angerer/EPA)