More or Less

Economist Intelligence Unit analyst Simon Baptist joins Tim Harford to discuss quantifying freedom and democracy worldwide. They explore democracy spectrum from top-tier to hybrid nations. Is democracy linked to happiness? Challenges in Nigerian democracy highlighted, along with the role of corruption and voter security.

Debunking the myth that London is France's sixth largest city, exploring discrepancies in estimates of French nationals in London, the complexities of estimating population numbers, London's size and position in international rankings, differences in tax systems between UK and France

Could Bayesian statistics find Flight MH370 from Kuala Lumpur to Beijing? This niche form of statistical modelling has been used to find everything from submarines to missing people. More or Less explores how it was used to locate the wreckage of Air France flight 447 from Brazil to France which disappeared in 2009. This programme was first broadcast on the BBC World Service.

Your questions answered - Do the Maasai in Africa number one million? Is it true that a quarter of Americans do not know the Earth goes round the sun? Are half of Tasmanians innumerate and illiterate? Plus, Do the 85 richest people in the world hold the same amount of wealth as the poorest half? This programme was first broadcast on the BBC World Service.

Are there 21 million slaves in the world today? Director of 12 Years a Slave, Steve McQueen, made this claim at both the Oscars and the BAFTAs while accepting awards. More or Less looks into the definition of a slave, where they can be found, and explores how they can be counted. This programme was first broadcast on the BBC World Service.

Becoming a pro on practice alone – is that possible? Or do you need innate talent? After reading books promoting the idea, a photographer with no natural talent explains how he is practising for 10,000, hours to become a professional golfer. We hear David Epstein, author of 'The Sports Gene', and Malcolm Gladwell, author of 'Outliers' explain their views on whether you need innate ability. This programme was first broadcast on the BBC World Service.

Epidemiologist Adam Kucharski discusses how the Neknomination craze mirrors an infectious disease outbreak and will eventually fade out. The podcast also delves into global income tax rates, comparing which countries tax the wealthy and average workers the most and the least.

Can economics help you find love? Tim Harford and the team look at the maths behind modern match-making. Economist Michele Belot from the University of Edinburgh explains why women are pickier than men at speed dating events. Plus - how analysing numbers from online dating agencies can help improve the chances of finding a partner: a personal story by Amy Webb, CEO of digital strategists Webbmedia Group. This programme was first broadcast on the BBC World Service.

In the US, more people are dying from drug overdoses than from road traffic accidents and firearms. As headlines are filled with the news that actor Philip Seymour Hoffman died from an overdose recently, the team takes a look at the number of deaths from drug overdoses of both illegal and prescription drugs in the US and the rest of the world. This programme was first broadcast on the BBC World Service.

How much do migrants cost or benefit a nation? Plus, planning a wedding - when you have friends and family all around the world and a finite number of places at the venue, how do you work out how many invitations to send? Tim Harford speaks to a couple who thought statistics might have the answer. This programme was first broadcast on the BBC World Service.