John Hewson is a former Australian politician and was leader of the Liberal Party from 1990 to 1994.

Full transcript available at: josephnoelwalker.com/john-hewson

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John Kay is one of Britain's leading economists.

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John Horgan is a science journalist and Director of the Center for Science Writings at the Stevens Institute of Technology, Hoboken, New Jersey. He was senior writer at Scientific American from 1986-1997 and is the author of the bestselling book The End of Science.

Full transcript available at: josephnoelwalker.com/horgan

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Graeme Davison is Australia's most eminent urban historian.

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Cheryl Misak is a Canadian philosopher and the author of Frank Ramsey: A Sheer Excess of Powers.

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Malcolm Turnbull was the 29th Prime Minister of Australia.

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Andy Lee is one half of iconic Australian comedy duo Hamish & Andy.

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Robert Skidelsky, FBA is a British economic historian. He is the author of a three-volume award-winning biography of British economist John Maynard Keynes.

Full transcript available at: josephnoelwalker.com/skidelsky

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Noam Chomsky is the father of modern linguistics and one of the most cited scholars in modern history. He is also one of the most influential public intellectuals in the world, having written more than 150 books.

Full transcript available at: josephnoelwalker.com/chomsky

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Sir Paul Collier is a British development economist. He is currently a professor of economics at the University of Oxford and was the Director of the Development Research Group at the World Bank between 1998 and 2003. Paul has authored numerous books, including The Bottom Billion, The Plundered Planet, and The Future of Capitalism. His latest book, co-authored with John Kay, is Greed is Dead: Politics After Individualism.

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