Brad Barber

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Free trading, it seems, can be a costly business. Photograph: iStock

Zero-fee brokerage Robinhood is named after the legendary outlaw who stole from the rich to give to the poor. However, a new study indicates the exact(...)

While professional investors tend to be undone by distraction and inattention, ordinary investors are more likely to pay attention to the wrong things. File photograph: Getty

When you’re distracted, your performance suffers. That’s true of surgeons – research suggests distraction in the operating room is a major factor in u(...)

A trader  on the floor at the closing bell of the Dow Industrial Average at the New York Stock Exchange: a range of studies have cast light on the drive and personality of traders. Photograph: Bryan R Smith/AFP/Getty

Ordinary investors badly underperform stock markets for a multitude of reasons. The biggest sin of all, though, is surely investors’ tendency to over-(...)

Ordinary investors tend to be seduced by glamour stocks and eschew cheap, less fashionable stocks.

Most investors are awful at investing, with countless studies confirming that ordinary punters consistently underperform the wider market. Some inves(...)

Robert Shiller, professor of economics at Yale University. Photograph: Ramin Talaie/Bloomberg via Getty Images

January was not a pleasant month for stock markets. Stocks endured their worst- ever start to a year, and the number of investors expecting a catastro(...)

New York Stock Exchange: many studies confirm that stock markets are not the preserve of hard-headed financial types. Photograph: Michael Nagle/Bloomberg

Are you investing in stock markets to boost your finances or because you are looking for a little excitement? Or is a bit of both, perhaps? The inves(...)

A female trader signals an offer in the Standard & Poor’s 500 stock index options pit at the Chicago Board Options Exchange. A 2005 Merrill Lynch study found women were less interested and knowledgeable on investing than men. However, they made fewer mistakes, and were less likely to repeat those they did make. photograph: scott olson/getty image

When it comes to investing, the cliché that men are from Mars and women are from Venus has more than a little truth in it. Despite (or perhaps because(...)