London’s stock exchange needs a shot in the arm from the Treasury | Nils Pratley

A marketing campaign is all very well but if the LSE's fortunes are to turn, the real oomph needs to come from the chancellor

• Looser bonus rules and tax breaks needed to save London stock market, says CBI

A marketing campaign to promote the joys of investing in the London stock market? The idea may sound slightly desperate, and will fall flat if proponents think they are rehashing the one-off Tell Sid" privatisation campaign for British Gas from 40 years ago. But, actually, yes, give it a go.

As the CBI puts it in a report out on Wednesday, a new narrative" is needed to stop the London Stock Exchange drifting into irrelevance. Since 2016, 143 UK-listed companies have exited to private equity takeovers. That tally is depressing if one agrees that corporate transparency and accountability are better in the public arena and that a healthy economy needs a buzzy exchange.