http://www.timharford.com/logicoflife/

“Life often seems to defy logic. When a prostitute agrees to unprotected sex, or a teenage criminal embarks on a burglary, or a smoker lights another cigarette, we seem to be a million miles from what we would call rational behaviour. None of this makes sense – or does it? Tim Harford thinks it does. And by weaving stories from locations as diverse as a Las Vegas casino and a Soho speed-date together with insights from an ingenious new breed of economist, he aims to persuade you that we are all, in fact, surprisingly logical. Reading this book, you’ll discover that the unlikeliest of people – racists, drug addicts, revolutionaries and rats – comply with economic logic, always taking account of future costs and benefits, even if they don’t quite realise it. It even explains why your boss is overpaid…”