With this new branch of science, human behaviour is not assumed, it is observed and experimented upon. Photograph: Simon Dawson/Bloomberg

I’ve never liked food shopping or supermarkets. I especially don’t like navigating overlit aisles after a busy day in an air-conditioned office. It(...)

Winners and losers: “The more often people look at their portfolios, the less willing they will be to take on risk, because if you look at it more often, you will experience more lossesm” says Richard Thaler. Photograph: Spencer Platt/Getty Images

In a world populated by Spock-like econs, all of us would conduct our financial affairs in a rational, self-interested manner. However, the world is p(...)

Checking stock prices too often is not good for your financial health, according to research. Photograph: Andrew Burton/Getty Images

Would you invest your money with a manager who didn’t know the names of any of the stocks in his portfolio, or the price they were purchased at? How w(...)

New York Stock Exchange traders: We are, according to one finance professor, biologically predisposed to screw up in our investment choices. Photograph: Brendan McDermid/Reuters

Investing is simple but not easy, as Warren Buffett once quipped, which is why so few people seem to follow that simple dictum about buying low and se(...)

Picking stocks: investors have reason to be grateful to devotees of the efficient market hypothesis and behavioural finance.  photograph: andrew burton/getty images

Are markets efficient, or are investor actions governed by animal instincts? Is it pointless trying to beat the market, or are stocks prone to systema(...)

Robert Shiller: has explored different ways in which asset prices can behave strangely

At first glance it is tempting to laugh at the 2013 Nobel Prize in Economics being shared between an academic who invented the “efficient markets hypo(...)