The real world is messy, circular and aggressive. It's full of 'wicked problems' that are not easy to solve in the neat, theoretical ways that game theory or chess challenges suggest - take overfishing, for example. This groundbreaking book sets out a powerful new approach, beyond economics alone and enriched with numerous illustrations, to understand the way the world really works in order to help us make better, long-term decisions. The authors call it 'real commerce', as opposed to the transactional commerce of buying and selling which is only a small part of commerce in the real sense of the world. Michael Mainelli and Ian Harris looks at the complex way in which people, organizations and societies communicate and deal with each other every day since real commerce drives society, politics, the economy and our future. The Price of Fish takes the reader on a journey through areas of knowledge, including choice architecture, systems and evolution, that need to be understood to explain how the world really works.