Currency fluctuations on an electronic board in Tokyo: ordinary traders lose an average of 3 per cent per week on forex markets. Photograph: Yuya Shino/Reuters

Nine out of 10 French traders lose money and evidence confirms high-risk bets rarely turn out well

NYSE trader: an emphasis on share prices and on meeting quarterly earnings expectations has led to destructive short-term behaviour by some chief executives. Photograph: EPA/Justin Lane

Companies and executives accused of moving from a value-creation approach to one of value extraction

Battered image: Tesco’s auditor, PricewaterhouseCoopers, warned in May of the “risk of manipulation” of financial results. photograph: jeff j mitchell/getty images

Massaging the figures is an age-old problem, and one that is not going to disappear anytime soon

Bill Clinton (right) campaigns for Kentucky secretary of state Alison Lundergan Grimes (left) with Kentucky governor Steve Beshear. photograph: win mcnamee/getty images

Markets typically rally in the months following American midterm elections

Tough times: a trader on the floor of the NYSE during recent market falls. Photograph: Spencer Platt/Getty Images

Stock markets have been volatile of late, many indices suffering double-digit corrections before swiftly rebounding. Is more turmo(...)

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