1Economist Richard Denniss is keen to make people realise the cost of the things we throw away. Dr. Denniss is the executive director of The Australia Institute, and the co-author, with Dr. Clive Hamilton, of the 2005 best-seller, Affluenza: When Too Much Is Never Enough. He's been in New Zealand to speak at Waste Management Institute of New Zealand workshops in Palmerston North, and released new research about the value of things we buy and throw away without ever using.