Discussing pay is one of society’s big taboos - it’s just not the done thing to ask other people what they earn. And it can be even more hush-hush in the workplace - we’re not told to keep quiet, but somehow everyone does. And yet, most of us would love to know what our colleagues earn.

So would lifting the lid on salaries trigger resentment and frustration, or be a tool for fairness and accountability? Evan Davis explores the pros and cons of pay transparency — from closing gender pay gaps to boosting retention – and speaks to one boss who’s tried a radical approach.

Is it the next frontier in corporate accountability, or does the culture of secrecy still serve a purpose?