More or Less

How does economics help us understand conflicts through history?

That’s the question that economist and journalist Duncan Weldon tries to answer in his new book, Blood and Treasure.

Tim talks to Duncan about the economic perspective on Viking raiders, Spanish conquest and the Vietnam war.

Presenter: Tim Harford

Tim Harford looks at some of the numbers in the news and in life. This week:

Is church-going making a comeback in the UK?

Is it true that every day, 1000 people begin claiming personal independence payments, or PIP?

When the government talks about how it “returns” illegal immigrants, what does it mean?

Can a new telescope really see golf balls on the moon?

If you’ve seen a number you think looks suspicious, email the More or Less team: [email protected]

More or Less is produced in partnership with the Open University.

Presenter: Tim Harford

It’s been over three years since Russia’s full-scale invasion of Ukraine and the human toll is growing on both sides.

Recently, politicians and journalists have declared a grim milestone, one million Russian casualties.

But is this number accurate?

Tim talks to Seth Jones, from the Center for Strategic and International Studies, and Olga Ivshina, from the BBC Russian service, to investigate this statistic.

If you’ve seen a number in the news you think we should take a look at, email the More or Less team: [email protected]

Presenter: Tim Harford

Tim Harford looks at some of the numbers in the news and in life. In this episode:

Why is the data on the ethnicity of grooming gangs of such poor quality?

Iran has apparently enriched uranium to 60%, but what does that number mean?

Adam Curtis’s latest series, Shifty, includes claims about Margaret Thatcher’s rise to power. We ask Sir John Curtice, polling king of election night, if they’re accurate.

And we ask an economist to explain why being pillaged by a Viking might be more lucrative than you’d imagine.

If you’ve seen a number in the news you think needs a stern look, email the team: [email protected]

Presenter: Tim Harford

Untruths sneak into our lives in all kinds of ways. Sometimes they’re outright lies. Blatant misinformation.

But in this episode, we’re going to talk about something else - those sneaky numbers and claims that bounce around our society and that aren’t exactly false, but are leading you down the wrong path.

That’s the subject of a book called May Contain Lies by Alex Edmans, a professor of finance at London Business School.

Tim talks to Alex about the statistical claims that might not be wrong, but aren’t right either – and how to make sure you aren’t fooled by them yourself.

Presenter: Tim Harford

Tim Harford investigates some of the numbers in the news, and in life. This week:

We debunk a false claim that the hotel bill for immigrants is the size of the tax bill for Manchester.

An article in the Spectator claimed that 4% of women aged between 18 and 34 in the UK are OnlyFans creators. We track down the source and discover that it is not very good.

Do people in Scotland use much more water than people in Yorkshire? If so, why?

And we examine a popular claim that today’s working mothers spend more time with their children than your stereotypical 1950s housewife did.

Make sure you get in touch if you’ve seen a number you think Tim and the team should take a look at. The email is [email protected]

Presenter: Tim Harford

The number of satellites orbiting our planet has been rapidly increasing in recent years. But what are the risks when they start falling back down to earth?

The European Space agency estimate that by 2030 there will be 100,000 satellites in orbit.

What does the government mean when it commits to developing a “10-times more lethal” army?

Why was the much-missed Sycamore Gap tree said to be worth a strikingly exact £622,191?

Are there really twice as many people teaching Yoga as there are in the fishing industry?

Is the number of workers per pensioner really falling from 4 to 3 to 2?

And what did Donald Trump mean when he said the price of eggs had fallen by 400%?

Tim Harford investigates some of the numbers in the news.

If you want us to look at a number you think looks a bit suspicious, email the team - [email protected]

Please note an earlier edition of the programme incorrectly stated that the new EU-UK fishing agreement would last 4 years. The agreement length is 12 years.

More or Less is produced in partnership with the Open University.

Presenter: Tim Harford

Exactly how many people live on our planet is one of those difficult-to-answer questions. The UN estimates is 8.2 billion, but that’s largely based on census data, which is certainly not a perfect measure.

So when a recent study from Finland found that rural populations around the world had been underestimated by 50 to over 80%, the media got quite excited. This would be a big error - a 50% underestimate would mean the actual number of people in an area is double the number they thought there were.

One newspaper in Spain - El Mundo - did its own sums and said this meant there were potentially 2 billion more people in the world than we currently think there are.

But is it what the researchers in Finland actually meant?

“Absolutely not,” says Josias Lang-Ritter, a researcher from University in Finland and a co-author of the study.

Tim Harford speaks to Josias to figure out the right way of understanding the study.

Presenter: Tim Harford

Tim Harford is here to sprinkle a refreshing shower of statistical insight over the parched lawns of misinformation.

This week, we try to unpick the confusion over a claim made by London Mayor Sadiq Khan about the contribution skilled immigrants make to the nation’s finances.

Mark Zuckerberg says that the average American has fewer than 3 friends. Is he right?

Two doctors claim that up to 90% of Alzheimer’s disease can be prevented. Are they wrong?

And Tim interviews an American, Catholic, philosopher of religion called Robert Prevost. Is he the pope?

If you’ve seen a number in the news you think we should look at, email the team – [email protected]

Presenter: Tim Harford