<p>When Economyths was first published in 2010, David Orrell showed how mainstream economics is based on key myths such as fair competition, rational behaviour, stability and eternal growth ? and how these myths lead paradoxically to their opposites: inequality, an irrational economy, financial instability and a collision with nature's limits.<br><br>Since then, we've had Occupy, political upheaval, flash crashes in financial markets, the warmest...