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How Should We Think About Spending?
Tim Harford talks to economist Dan Ariely about the psychology of money.

Are We Breathing Unsafe Air?
The W.H.O. say 95% of people in cities breathe unsafe air, but what does 'unsafe' mean?

Why London’s Murder Rate is Being Compared to New York’s
Finding out if London is now more deadly than New York.

How Deadly Was 1920s Melbourne?
How accurate is the murder rate in the crime series Miss Fisher’s Murder Mysteries?

Were ‘Extra’ Votes Counted in Russia’s Presidential Election?
We look at voting data to investigate allegations of election fraud in Russia

Factchecking Trump on Trade
The US President regularly talks about America's trade deficit - do his figures stack up?

Did Sir Roger Bannister make the ‘impossible’ possible?
A mile in under four minutes. Did positive thinking propel dozens to do the same?

Women, the Oscars and the Bechdel Test
Ninety years’ worth of Best Picture winning films under the spotlight.

The Winter Olympics
Which is the most successful country? Plus the chances of a dead heat.

Debunking guide – on a postcard
How to question dubious statistics in just a few short steps