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PODCAST

More or Less

Tim Harford explains - and sometimes debunks - the numbers and statistics used in political debate, the news and everyday life

science mathematics

All Episodes

9:04

WSMoreOrLess: Can we trust food surveys?

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2016/03/11

Stories about what foods are good and bad for you, which foods are linked to cancer and which have beneficial qualities are always popular online and in the news. But how do experts know what people are eating? Tim Harford speaks to Christie Aschwanden, FiveThirtyEight’s lead writer for science, about the pitfalls of food surveys. She kept a food diary and answered nutrition surveys and found many of the questions were really hard to answer – how could she tell all the ingredients in a restaurant

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9:04

WSMoreOrLess: Fact checking The Big Short

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2016/03/04

"Every one percent unemployment goes up, 40,000 people die, did you know that?" says Brad Pitt playing a former investment banker Ben Rickert, in the recent Oscar-winning film The Big Short. Although based on a true story, the filmmakers admit there is some creative license in some of the scenes. But is there any truth to this statistic? It turns out it’s a figure that has been around for many decades. We explore its origins.The debate over whether the UK should leave the European Union is heating

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9:04

WSMoreOrLess: Antibiotics and the problem of the...

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2016/02/26

It’s a life and death situation – the world is at its last line of defence against some pretty nasty bacteria and there are no new antibiotics. But it’s not the science that’s the big problem, it the economics. Despite the $40 billion market worldwide there’s no money to be made in antibiotics so big pharma have all but stopped their research. Why is this and how do we entice them back in? Wesley Stephenson finds out. (Image: Computer artwork of bacteria - credit: Science Photo Library)

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9:04

WSMoreOrLess: When £10,000 isn’t a good incentive

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2016/02/19

Could no prize have been a better way to motivate snooker player Ronnie O’Sullivan?

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9:09

WSMoreOrLess: Fishy numbers?

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2016/02/15

There were reports recently that there will more plastic in the ocean than fish by 2050. The report comes from The Ellen MacArthur Foundation. But as we discover there's something fishy about these figures. And what are the chances that as a parent you share your birthday with two of your children.

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27:46

Selfies, sugar daddies and dodgy surveys

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2016/02/12

Adverstising dressed up as research has inspired us this week. Firstly recent reports that said that young women aged between 16 and 25 spend five and a half hours taking selfies on average. It doersn't take much thinking to realise that thhere something really wrong with this number. We pick apart the survey that suggested women are spending all that time taking pictures of themselves. The second piece of questionable research comes from reports that a quarter of a million UK students are getting

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9:49

WSMoreOrLess: Do e-cigarettes really harm your...

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2016/02/08

Research last month claimed to show that e-cigarettes harm your chances of quitting smoking. The paper got coverage world-wide but it also came in for unusually fierce criticism from academics who spend their lives trying to help people quit. It’s been described as "grossly misleading" and "not scientific". We look at what is wrong with the paper and ask if it should have been published in the first place.(Image: Man smoking e-cigarette. Credit: Dan Kitwood/Getty Images)

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27:55

E-cigarettes: Can They Help People Quit?

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2016/02/05

Do e-cigarettes make quitting smoking more difficult? Research last month claimed to show that e-cigarettes harm your chances of quitting smoking. The paper got coverage world-wide but it also came in for unusually fierce criticism from academics who spend their lives trying to help people quit. It's been described as 'grossly misleading' and 'not scientific'. We look at what is wrong with the paper and ask if it should have been published in the first place. A campaign of dodgy statistics Are

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9:18

Swedish refugees

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2016/02/01

Have refugees caused a gender imbalance in Sweden? It has been reported that there are 123 boys for every 100 girls aged between 16 and 17 in Sweden. In China, the ratio is 117 boys to 100 girls. We explore if the numbers add up and why this might be.

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27:50

How harmful is alcohol?

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2016/01/29

New alcohol guidelines were issued recently which lowered the number of units recommended for safe drinking. But are the benefits and harms of alcohol being jusged correctly? We speak to Professor David Speigelhalter and Sepsis – do 44,000 people die of it a year? Is it the country's second biggest killer? We speak to Dr Marissa Mason about the difficulties of knowing the numbers. Dan Bouk tells the story of a statistician who crept around graveyards in South Carolina at the turn of the century

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9:48

WSMoreOrLess: Oxfam and Wealth Inequality

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2016/01/25

You may have seen the claim that ‘62 people now own as much wealth as half of the world’s population’. You may also have seen headlines that suggest that 1% of the world’s population now own more than the 99% put together. This is the latest iteration of Oxfam’s annual report looking at global inequality. They say that the overall the world may be getting richer but that most of the wealth is concentrated in the hands of fewer and fewer people. But is this really telling us what we think it’s

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27:51

Billionaires versus the world

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2016/01/22

Oxfam says that 62 people now own as much wealth as half of the world’s population. But is this really telling us anything meaningful? And how is it that this study shows that some of the world’s poorest people live in the United States?What do you do with bored children on a bus? Rob Eastaway, author of ‘Maths on the go,’ gets three pupils to play a game on the Number 12 in south London. Prime Minister David Cameron said this week that 22% of British Muslim women speak little or no English. He says

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9:46

WS MoreOrLess: Gravitational Waves

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2016/01/18

One of our 2015 ‘Numbers of the Year’ predictions might have come to pass. There is great excitement over rumours that one of the predictions Einstein made in his theory of General Relativity has finally been observed. But it’s not the first time it’s been reported that ‘gravitational waves’ have been discovered, and the last time proved to be an equipment test.What is the total number of possible tweets that could be created from 140 characters? In a recent programme Professor John Allen-Paulos

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27:59

Weekend Stroke Deaths

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2016/01/15

Health Secretary Jeremy Hunt said this week that if you have a stroke at the weekends, you're 20% more likely to die. But is that true? We look at the evidence.Are you more likely to win prizes with newer Premium Bonds? We ask Radio 4’s Money Box presenter Paul Lewis if there is any truth in this.A few weeks ago many newspapers were reporting that alcohol was the cause of 70% of Accident and Emergency attendances over the weekends. Did the newspapers misunderstand the research?Why was the polling in

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9:34

WS MoreOrLess: Numbers of the Year 2015: Part Three

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2016/01/11

What is preventing some Americans from being creative? And, how much money does the English Premier League contribute in tax? Tim Harford looks back over some of the numbers that made the news in 2015. He speaks to author and broadcaster Farai Chideya, former footballer Graeme le Saux, and BBC cricket statistician Andrew Samson.

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24:12

Flood Defence Spending

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2016/01/08

Tim Harford and the team take a look at some of the numbers in the news about flooding. What is a one hundred year flood? And is there really a north-south divide in the amount of money spent on flood defences in England? What is the total number of possible tweets that could be created from 140 characters? In a recent programme Professor John Allen-Paulos told us that when you take into account all of the symbols available, the total number of possible tweets is Googol2.8 (which is a 1 followed by

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9:35

WSMoreOrLess: Numbers of the Year 2015 Part 2

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2016/01/04

How healthy is the Nigerian economy and how many possible tweets are there? Tim Harford looks back over some of the numbers that made the news in 2015. Guests include: Peter Cunliffe-Jones from Africa Check, Professor John Allen Paulos and Dr Andrew Pontzen

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28:02

Numbers of the Year 2015

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2016/01/01

Tim Harford looks back at some of the most interesting numbers behind the news in 2015, from the migrant crisis to social media messages. Contributors include: Professor Jane Green, Helen Arney, Paul Lewis, Andrew Samson, Leonard Doyle , Peter Cunliffe-Jones, Farai Chideya, Claire Melamed and Professor John Allen Paulos.

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9:34

WS MoreOrLess: Numbers of the Year 2015 Part 1

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2015/12/25

How has the European migrant crisis affected the number of people seeking asylum? In this special programme Tim Harford looks back at some of the numbers making the news in 2015. Guests include: Leonard Doyle from the International Organisation for Migration and Claire Melamed from the Overseas Development Institute.

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12:33

WS MoreOrLess: How Many Stormtroopers are there?

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2015/12/18

Are Star Wars’ Stormtroopers the biggest secret army on Earth? Ruth Alexander investigates, and looks at some of the other numbers behind one of the most successful movie franchises in history.

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