Neville Isdell, chief executive of Coca-Cola, has criticised corporate leaders for not speaking out against protectionism, warning that the failure of big business  to convince politicians and public opinion of the benefits of free trade will harm global growth and companies’ profits.

In a video interview with the Financial Times – in which he also indicated that he might continue to lead the drinks group beyond his 65th birthday next year – Mr Isdell said recent regulatory scandals had prompted chief executives to steer clear of controversial topics such as free trade.