Did 'rock-star' French economist Thomas Piketty get his numbers wrong? His theories about rising inequality and the increasing importance of capital have been the talk of the economic and political worlds this year. And part of their appeal has been the massive amount of data Piketty has brought together to back them. But the Financial Times claims to have found significant problems with Piketty's data on wealth, and says this undermines his claims about rising inequality. Tim Harford examines the FT's claims and Thomas Piketty's response. Plus: is as much land given over to golf courses as housing in England; is racism on the rise in Britain; and should we be concerned that several young men who have died recently were players of the video game Call of Duty?
More or Less: Behind the Stats - WS MoreOrLess: Risk Savvy
A famous probability puzzle is discussed involving goats and game shows with German psychologist Gerd Gigerenzer. Is he right to suggest in his new book 'Risk Savvy' that we really don't understand risk and uncertainty? And More or Less listeners weigh in on a problem from last week?s programme - how old will you be before you're guaranteed to celebrate a major, round-number birthday (like 40 or 50) on a weekend?
Start the Week - Charleston Festival
Picture taken by Axel Hesslenberg
Start the Week is at the Charleston literary Festival with the novelists Tim Winton, Karl Ove Knausgaard, Nicola Barker and the poet and publisher Michael Schmidt. The death of the novel has been predicted since the early twentieth century but in a special programme recorded in front of an audience Tom Sutcliffe talks to three leading novelists from around the world about their latest works. They discuss their influences and their divergent styles, from Knausgaard's minute examination of his life to Tim Winton's tale of disillusionment and redemption, and Nicola Barker's humorous eccentrics. Michael Schmidt has written a biography of the novel, charting its ups and downs, its personalities and relationships and argues the form is in rude health.
Producer: Katy Hickman.
More or Less: Behind the Stats - Romanian Crime
Are the statistics put forward by UKIP accurate, and are Romanians responsible for more crime than other nationalities? Plus: Gerd Gigerenzer on the famous probability puzzle involving goats and game shows; do 24,000 people die every year from lightning strikes globally; how old will you be before you're guaranteed a round-number birthday on a weekend; and is the divorce rate in the US state of Maine linked to margarine consumption?
More or Less: Behind the Stats - WS MoreOrLess: Did global poverty halve overnight?
Did the number of people around the world living in extreme poverty fall by half a few weeks ago? That's one interpretation of newly released figures for purchasing power parity around the world. The figures compiled by the International Comparison Programme of the World Bank show that in a lot of poorer countries, things are cheaper than we had thought. One development think tank has suggested that if people in these countries can afford to buy more, fewer of them will fall under the World Bank's definition of extreme poverty. We take a look at the argument to see if it stacks up, and whether the World Bank should be lowering its estimates for global poverty in light of the new figures. This programme was first broadcast on the BBC World Service.
Start the Week - Alien Invaders
Anne McElvoy talks to the biologist Ken Thompson who dismisses attempts to control invasive species and questions the veracity of dividing plants and animals into 'native' and 'alien'. However the Director of the Kew Innovation Unit Monique Simmonds warns that alien pests and diseases can have a devastating effect on much-loved plants, and that it's vital to maintain and support diverse environments. The farmer John Lewis-Stempel records the passage of the seasons in his account of the life of an English meadow and he laments the decline of some of his favourite birds from his childhood. The woolly mammoth used to be native in Europe before it became extinct, and the palaeontologist Victoria Herridge confounds expectations by identifying the smallest mammoth ever known to have lived. Producer: Katy Hickman.
More or Less: Behind the Stats - Tax Dodgers and Benefits Cheats
Does the government have lots of people chasing the relatively small amounts lost to benefits cheats, while massive amounts of tax evasion are barely investigated? Plus: did global poverty fall by half a few weeks ago; Eurovision data crunching; Willy Wonka's coveted 'Golden Tickets' and is London the 6th biggest French city?
Start the Week - The Myth of the Strong Leader?
Tom Sutcliffe asks whether it's better to lead from the front, or advise from the side-line. The Deputy Chairman of Saatchi & Saatchi, Richard Hytner celebrates the latter: those who wield influence and authority away from the limelight. Heather Rabbatts has experience of being a Deputy and a Chief Executive in both politics and business. The academic Archie Brown looks back at the history of political leadership and questions whether strong leaders are the most successful and admirable, while Tony Blair's former chief of staff, Jonathan Powell turns to Machiavelli's The Prince for a primer on the art of government. Producer: Katy Hickman.
More or Less: Behind the Stats - WS MoreOrLess: Brazil?s Maths Superstar
The Man Who Counted, a book of 'Arabic' mathematical tales written by Middle Eastern scholar Malba Tahan was published in Brazil in the 1930s. It became a huge success. Malba Tahan's birthday, May 6th, is now celebrated as Brazil's National Day of Mathematics. But the author wasn't who everybody thought he was. Alex Bellos tells his story. This programme was first broadcast on the BBC World Service.
More or Less: Behind the Stats - Food Bank Britain
Food banks are being used by a million people in Britain according to recent newspaper reports. But what do we really know about how many people are using food banks, and does this tell us anything about whether food poverty is increasing? Plus: we remember Gary Becker; Alex Bellos tells the story of Brazil's most famous mathematician; and did a fruit and vegetable seller run the first four minute mile in 1770?