TODAY’S RADIO

How Low Can Rates Go? 9AM, 9.30PM, RADIO 4

Five central banks, which together oversee a quarter of the world’s economy, have imposed negative rates on commercial banks in a bid to encourage spending and investment. It’s a move that goes against the established business of banking, which has been based on paying savers and charging borrowers for money. Martin Wolf looks at this new trend, and other radical policies being considered by the banks to boost economic growth.

Crossing Continents 11AM, RADIO 4

There’s been a rise in child marriages in Malawi, as starving families try to reduce the numbers of mouths to feed. The vile practice of hiring men to ‘clear out the dust of childhood’ – by sexually initiating adolescent and pre-adolescent girls – has become worryingly prevalent. These men claim they are carrying out a traditional custom; well, they would, wouldn’t they? Ed Butler reports on a disgraceful practice.

The Why Factor 12 NOON, RADIO 4

Why are some people more prone to addiction than others? Mike Williams talks to scientists and exaddicts about destructive behaviour and wonders why, for some people, pleasure and desire lead to an overwhelming cycle of dependency.

BBC Proms 2016 7.30PM, RADIO 3

Former contestant Katie Derham is reunited with some of her high-kicking pals from Strictly Come Dancing. Karen, Kevin and Joanne Clifton, along with Janette Manrara, Giovanni Pernice and Aljaz Skorjanec, are on stage as the BBC Concert Orchestra play some old and new dance music favourites.

The Briefing Room 8PM, RADIO 4

Donald Trump has exerted some strange power over many Americans. Born into wealth, he has somehow convinced many of his fellow countrymen that he pulled himself up by his bootstraps and, despite a divorce or two, he sees himself as a God-fearing upholder of family values. Here, the journalist, David Aaronovitch wonders how Trump got the Republican nomination, despite alienating so many voters.