More or Less

Tim Harford investigates some of the numbers in the news. This week:
(00:31) Claims have circulated on the internet that Europe sees a particularly high number of deaths from heat waves, especially when compared to the US. Can we really compare the statistics, and is air conditioning a silver bullet?
(06:59) Sainsbury’s are making the switch from brown to white eggs, on the basis of claims about their carbon footprint - but how do you work this out? We talk to an egg man about eggs. A lot.
(13:56) Are Conservative MPs frit? That’s what a Labour MP thinks after a recent PMQs saw no Conservative backbenchers ask a question. Are they really afraid to ask Keir Starmer a question? Or is it just probability?
(19:20) In a series full of Welsh twists, another Welsh twist; have we been guilty of drastically underestimating the area of Wales by failing to account for its majestic mountains and plunging valleys? Topography is top of mind for our top team.
More or Less is the programme that looks at numbers and statistics in news and in life. We’re always looking for questions from listeners - you can contact us on moreorless@bbc.co.uk.
Guests:
Gary Ford - policy advisor at the British Free Range Egg Producers Association
Dr Laura Graham - computational and spatial ecologist at the University of Birmingham
Dr  Jen Visser Rogers - statistician and chief scientific officer at Coronado Research.
Special guest appearance:
Elis James
Presenter: Tim Harford
Series Producer: Tom Colls
Reporter: Lizzy McNeill
Producers: Nathan Gower, Josh McMinn
Editor: Richard Vadon
Programme Coordinator: Brenda Brown
Sound Engineer: Neil Churchill

The Great Crash of 1929 has faded into history, but financial journalist and author Andrew Ross Sorkin argues it holds vital lessons for today.
Andrew came into the studio in London to discuss what we can understand about the crash in numbers, from ticker-tape running hours behind plunging stock prices to crucial metrics that sound the alarm bells before a financial crisis. Are they sounding today, in the middle of an AI stockmarket boom?
Andrew’s new book is ’1929: Inside the Crash’.
Presenter: Tim Harford
Series Producer: Tom Colls
Producer: Nathan Gower
Editor: Richard Vadon
Programme Coordinator: Brenda Brown
Sound Engineer: James Beard

Tim Harford investigates some of the numbers in the news. This week:
(00:32) The internet is abuzz with the claim that twenty-seven young migrants are hired for every British young person. We explore the truth behind this misleading claim.
(08:40) Last year two nerds made a bet on our programme. Those nerds are Substacker Sam Freedman and Maxwell Marlow from the Adam Smith Institute, and they were betting on how the government’s introduction of VAT on school fees would affect pupil numbers. The results are in…
(16:10) We revisit the topic of Welsh literacy after a raft of questions from loyal listeners. Could dual-language teaching explain Wales’ poor reading scores?
(21:53) A Maths A-Level exam was so hard it inspired 30,000 people to sign a petition. But what made it so difficult, and will it make a difference to pupils’ grades?
More or Less is the programme that looks at numbers and statistics in news and in life. We’re always looking for questions from listeners - you can contact us on moreorless@bbc.co.uk.
Guests:
Maxwell Marlow - Director of Public Affairs at the Adam Smith Institute
Sam Freedman - Author of ‘Comment is Freed’ Substack
John Jerrim - Professor of Education and Social Statistics at University College, London
Sebastian Bicen - maths YouTuber and former school maths teacher
Presenter: Tim Harford
Series Producer: Tom Colls
Reporter: Lizzy McNeill
Producers: Nathan Gower, Josh McMinn
Editor: Richard Vadon
Programme Coordinator: Brenda Brown
Sound Engineer: James Beard

In certain corners of the internet some suspicious numbers are cropping up again and again. People claiming that 400 churches have been burnt to the ground or attacked in an assortment of countries, including France, the US and Canada. So, what is going on? Is there a spate of anti-Christian crime sweeping the globe?
We look into what the data actually tells us.
If you've seen a number in the news you think we should take a look at, email moreorless@bbc.co.uk
Presenter: Tim Harford
Reporter/Producer: Lizzy McNeill
Series Producer: Tom Colls
Editor: Richard Vadon
Production Coordinator: Brenda Brown
Sound Mix: Dave O'Neill

Tim Harford investigates some of the numbers in the news. This week:
The Daily Express claims that ‘Migrants will get half of all new homes’, based on a calculation from the Conservatives. We explain why that’s not what the numbers say, and ask what the Conservatives own record on migration and housing tells us.
Does one in five Welsh pupils leave school functionally illiterate? We take a dive into the world of Welsh education and find the numbers tell a different story - but not an encouraging one.
Accusations are flying about who’s responsible for the UK’s high borrowing costs. Does Liz Truss still cast a shadow over the bond market? Is Labour infighting to blame? Or are we missing the economic wood for the political trees? Duncan Weldon has the answers.
And an answer to a question that literally only one person was asking: how many football pitches would fit inside Wales?
More or Less is the programme that looks at numbers and statistics in news and in life. We’re always looking for questions from listeners - you can contact us on moreorless@bbc.co.uk.
Guests:
Ben Brindle - researcher at the Migration Observatory at the University of Oxford
James Riding - Living Markets and Sustainability Editor at Inside Housing
Kathy Rastle - Professor of Cognitive Psychology at the University of London
Duncan Weldon - Economist and author of Blood and Treasure
Rob Eastaway - mathematician and author of Maths on the Back of an Envelope
Presenter: Tim Harford
Series Producer: Tom Colls
Reporter: Nathan Gower
Producers: Josh McMinn, Lizzy McNeill
Editor: Richard Vadon
Programme Coordinator: Brenda Brown
Sound Engineer: James Beard