By Tim Focas British companies are often accountable to passive shareholders, such as pension funds, leading to risk aversion and short-termism. The US invests differently, with much better results, says Tom Focas The UK economy is in dire need of a rejuvenation. Growth is still stagnating, productivity lags behind global competitors, and industries that once anchored the nation’s prosperity are losing ground. As policymakers endlessly debate various reforms, one glaring issue remains largely unaddressed: the UK’s corporate culture is ill-equipped to foster the kind of long-term investments th…