Liberal commentator Will Hutton has unveiled his report into public sector pay, calling for the ability to track and publish the pay multiples of both public and private companies.
The fair pay review into salary levels in the public sector has shocked Downing Street with its demands for far greater transparency in both sectors.
The report recommends revealing the ratio between the pay of the chief executive and that of the average worker in public companies, without setting a limit on bosses' pay.
Mr Hutton suggested top executives should have 10% of their salary withheld if they failed to perform and the government should publish an annual report into fair pay.
The report also argued that comparing the salaries of high-level bosses in the public sector to that of the prime minister was hindering the debate about fair pay.