Category: ScienceNews

“I cannot count the number of people who’ve told me on Twitter, ‘Of course immigrants increase British unemployment! Of course immigrants drive down wages. It’s just the law of supply and demand.’ And it’s an almost infallible rule that people who say that do not understand basic economics and do not understand supply and demand, because immigration adds to both supply and demand.”

So recounts Jonathan Portes, a professor of economics and public policy at the School of Politics & Economics of King's College, London and the former chief economist at the Cabinet Office, in this Social Science Bites podcast.

Portes is explaining to interviewer David Edmonds how the “lump of labor fallacy” -- that there’s only a certain number of jobs to go around when in fact the number of jobs in an economy is not fixed – often plays out in the popular debate on immigration. “The key here,” Portes adds, “is that immigration leads to demand as well as supply.”

The economist has a long and storied career in British economics, having been chief economist at the Department for Work and Pensions before his stint in Cabinet and then director of the National Institute of Economic and Social Research from February 2011 until October 2015. His latest achievement is the release of What Do We Know, and What Should We Do About Immigration, one of three books in the debut release of SAGE Publishing’s new ‘What Do We Know’ series of social science explainers. (SAGE is the parent of Social Science Space.)

One of the things that he definitely knows is that for anyone who sees immigration as an unalloyed evil (or boon, for that matter) is certainly mistaken. He likens immigration to trade, which is generally reckoned to be a good thing. “Trade and immigration are in some way very closely analogous and that the results that you get about the overall benefits – with the possible issue of distributional consequences – are very similar.” Those ‘distributional consequences,’ of course, often get the outsize headlines.

“The UK has always been a country of immigration in some ways, going right back to the Norman conquests, if you like” Portes observes. Pre-European Union, surges in immigration often came from  refugees like the Huguenots or from commonwealth countries. “Step change,” he adds, did not accompany immediate entry in the EU, but did in the 1990s. “It coincided with Tony Blair’s government and some of the policy changes that Blair introduced, but it wasn’t driven by that, but by globalization.” The number of arrivals tripled from about 50,000 a year net migration to 150,000 a year. Another jump came in 2004, when workers in the new Eastern European member states in the EU – Poland, Hungary, the Czech Republic, Estonia, Latvia, Lithuania, Slovakia, Slovenia – flocked to an open UK labor market.

He offers quick correlation to test the direst worries about the continuing influx. He looks at two decades of heavy immigration into the UK, in particular in the last five years, and then at the unemployment figure, at 4 percent the lowest since the current way of measuring joblessness were instituted. “It doesn’t prove anything, because of course there are lots of other things going on. But it does sort of tell you that if immigration really had a big negative effect on the employment of natives, that’s not really consistent with the aggregate data.”

Portes admits that there’s more to immigration that employment and wages; those just where the good data reside. “It’s much harder when you’re looking at more complicated issues – business startups, productivity, innovation. There is some evidence that immigration has had positive impacts ... but its more suggestive and more qualitative.”

So ever the academic, he does caveat. But being the former bureaucrat, he also interpolates. Portes offers Edmonds the example of British higher education. “Instinct tells me that [immigration has] been good. Would we have the world-leading universities that we have in London if we had to solely rely on Brits to fill the jobs? I think it’s almost inconceivable that we would.”

It’s frustrating to be stuck in traffic. Listener Collins from Nairobi, Kenya, spends at least three hours a day in traffic and he counts himself lucky. Many of his friends will easily spend six hours in traffic jams to get back and forth from work. Collins wants to know whether there is hope for his hometown – has any city managed to eliminate the worst of the traffic hot spots and how did they do it? Collins is not alone in his frustration. CrowdScience finds that congestion plays a major factor in the happiness and health of urban citizens. Commuters have been measured to have stress levels equivalent to that of riot police facing angry protesters.

So should our cities cater less for cars and what are the alternatives? Presenter Gareth Barlow heads to Copenhagen to meet the politicians and urban designers who have transformed the Danish capital from a city for cars to one for bikes and people. Presenter: Gareth Barlow. Produced by Louisa Field

(Photo: Afternoon traffic along Likoni road in Nairobi's Kilimani susburb. Credit: Getty Images)

As Europe experiences another record breaking heatwave, we look at the science of attribution. Usually it’s a long time after extreme weather events that scientists gather enough data to make a judgement on the influence of anthropogenic forces, such as man-made climate change.

However climate experts at a meeting Toulouse France, experiencing the worst of the heatwave, are crunching the data right now, to see if they can quantify the influence of climate change on this heatwave as it happens.

Also we find lakes of fresh water hidden – under the sea, find that Neanderthals went west and discover how spiralling laser light may be used to control a new generation of microelectronics.

(Photo: Heatwave in Paris. Credit: European Photopress Agency)

Presenter: Roland Pease Producer: Julian Siddle

Breathing is automatic: awake or asleep, running or resting, our bodies unconsciously make sure we get enough oxygen to function. But - unlike other bodily functions such as heart rate and digestion - it’s not hard to control our breathing consciously. If you’ve ever been to an exercise, meditation or yoga class, you’re probably familiar with instructions about how and when to breathe.

It was one of these instructions - “breathe in through your nose and out through your mouth” - that prompted CrowdScience listener Judi to wonder if this really was the best way to breathe during her exercise class. Is there good evidence to support the benefits of different breathing techniques - whether through the nose or mouth, fast or slow, noisy or quiet? And is consciously controlling your breath more about improving psychological focus, or optimising body mechanics?

Sports scientist Mitch Lomax takes us through the biology, chemistry and physics of breathing, and shows us how to train our respiratory muscles. We meet yoga guru Hansa Yogendra in India, where the study of pranayama - literally “breath control” in Sanskrit - is thousands of years old; and find out what scientists have discovered about the effects of these ancient techniques on the body and mind.

Presenter: Anand Jagatia. Producer: Cathy Edwards

(Photo: A woman jogging outside, wearing sports clothes on a blue sky background. Credit: Getty Images)

Iran’s nuclear programme is at the centre of a political row, with the country suggesting it could increase uranium production to above the levels permitted under an international agreement. We look beyond the rhetoric, discuss Iran’s covert history of nuclear development and ask scientifically what this latest move involves.

Fish are no respecter of international borders and when it comes to spawning, research reveals up to $10bn worth of potential fish stocks move between different political territories.

Ancient trees in the Eastern US are yielding clues to the climate going back more than 2000 years, they reveal there has been more rain recently.

And we look at how to quantify that rain as it falls now, over much shorter timescales.

(Photo:President Hassan Rouhani and the head of Iran nuclear technology organization Ali Akbar Salehi inspecting nuclear technology. Copyright: Office of Islamic Republic President via EPA)

Presenter:Roland Pease Producer: Julian Siddle

For decades, people suffering from chronic depression have relied on medicines that affect the levels of chemicals in the brain like serotonin, which regulate mood and emotion. But ten percent of people don’t benefit from any of the existing treatments for this devastating condition.

Sisters Annie and Kathryn have both been diagnosed with long-term depression that makes it hard for them to experience pleasure as others do. But they’re interested in whether there are new solutions on the horizon that could improve their wellbeing, in particular ones that don’t necessarily involve conventional medication.

Datshiane Navanayagam learns how a technique called mindfulness could strengthen neural connections in bits of the brain that communicate with each other. This, it’s said, may harness the ability of the brain to adapt and self-repair which can change people’s emotional responses to life’s ups and downs. She meets a psychologist who shows how this simple technique could improve our overall ability to process information and reverse negative thought patterns.

CrowdScience also hears about cutting edge research into the use of psychedelics as potential treatment for depression and heads to the UK’s only centre for ketamine therapy, where patients say a drug once popular with partygoers, is having a profound effect on their mental health.

Produced by Marijke Peters for BBC World Service.

(Photo: A woman sitting on the top of a mountain and meditating. Credit: Getty Images)

South Asia has experienced a heatwave where the monsoon has been delayed and temperatures have reached over 50 degrees. Despite this the extreme heat has led to far fewer fatalities than previous heatwaves; we look at why that is.

Research into the origins of almonds shows they were domesticated in Asia before spreading worldwide. It’s a bitter sweet story, with sweet varieties being selected over bitter ones. In fact the bitter ones contain poisons which can kill..

As with almonds cannabis as a drug seems to have spread via silk routes. The discovery of ancient burnt wooded bowls suggests it was smoked millennia ago in China – as part of funeral rituals.

And we investigate California’s cannabis farming industry, there are concerns over the environmental impact of this now legal cash crop.

(Photo: Indian boatman walks amid boats on the dried bed of a lake at Nalsarovar Bird Sanctuary. Credit: Sam Panthaky/AFP/Getty Images)

Presenter: Roland Pease Producer: Julian Siddle

Singing can lift our spirits, but research suggests it could also benefit our health, improving breathing for people with lung conditions and helping us cope with dementia. Could it even have a preventative effect?

CrowdScience heads to Cheltenham Science Festival in the UK county of Gloucestershire - one of the first places to pioneer this kind of “social prescribing” - to find out. Presenter Anand Jagatia teams up with panellists Dr Daisy Fancourt, Senior Research Associate in Behavioural Science, Dr Simon Opher, family doctor and Clinical Lead for Social Prescribing, and Maggie Grady, Director of Music Therapy at charity Mindsong to learn more. They’re joined on-stage by their Breathe In Sing Out and Meaningful Music volunteer singing groups to find out what this much-loved musical pastime can do for us.

Producer: Jen Whyntie

(Photo: Students singing in a choir with their teacher. Credit: Getty Images)

The US has withdrawn funding for scientific research involving foetal tissue. Scientists point to the lack of feasible alternatives to using foetal tissue – which comes from embryos donated to scientific research via abortion clinics. They say the move to halt this kind of research will have a negative impact on the ability of US medical institutions to develop new treatments for a range of diseases from diabetes to cancer.

More controversy from the ‘Crispr babies ‘ scandal – with a new analysis showing the modified gene may have a wide impact on the health of the children it was claimed to have been implanted into.

A reassessment on North Korea’s Nuclear tests using cold war methodology suggest the last explosion was more powerful than previously thought.

And we investigate a small British Earthquake south of London.

(Picture: Donald Trump, Credit:SAUL LOEB/AFP/Getty Images)

Presenter: Roland Pease Producer: Julian Siddle

Is education, by itself, the great equalizer? Will having the same education erase the benefit someone from a higher class has over someone from a lower class? “Education,” says sociologist Sam Friedman, “doesn’t wash away the effects of class background in terms of allocating opportunities. That’s quite profound – I believe there are a lot of people who believe quite strongly that these sorts of educational institutions can and do act as sort of meritocratic sorting houses.”

Friedman, an assistant professor at the London School of Economics, doesn’t deny education has some role – and some successes – in this role, but believes that education is not sufficient to achieve the goal of unbinding Britain’s class system.

Friedman tells interviewer David Edmonds in this Social Science Bites podcast that “it’s a very long and protracted discussion that we could have about the meaning of class.” He sees two ways to discuss it in sociological terms: the dominant model of what work do you do, and the Pierre Bourdieu-influenced idea of what resources -- or economic, cultural and social capital -- can you draw upon.

Friedman’s work tends to use that first definition: “What’s the nature of that work in terms of both your level of autonomy at work as well as your earnings potential, and what is that work’s nature.” In turn, he focuses a lot on elite professions, as suggested by the title of the book he co-authored with Daniel Laurison, The Class Ceiling: Why it Pays to be Privileged.

“You know, a lot of the emphasis in terms of understanding social mobility has tended to be on this ideas of ‘access to the professions,’” he explains. “These are traditionally an area that have been the preserve of people from fairly privileged backgrounds and there’s been a sort of enduring policy emphasis on opening them up, making those areas accessible to all based on merit, based on talent. I suppose we wanted to interrogate that in a way that was new and fresh and brought to bear new evidence.”

The goal, he adds, is to answer that question always lurking in the background of discussions by Britons about Britain: What sort of society do we live in?

One where class still affects outcomes. While that might seem intuitive, Friedman’s research has helped unpack exactly what’s going on here, even when opportunity at the educational level evens out. His metric for measuring the residual disparity in classes is the pay gap – stubborn and measurable – in which people from working-class backgrounds who do score ‘elite’ jobs make 84 percent of what their coworkers from privileged backgrounds do.

In this podcast, Freidman describes some of the reasons he’s found for the persistence, including the ability of the well-off to draw from ‘The Bank of  Mum and Dad’ throughout their lives, a financial lifeline which often gives them the flexibility to take chances that poorer colleagues fear. He also describes how sponsorship opportunities often go to not to the top performers but to people who share a cultural affinity with their potential mentor, or how behavioral codes tend to push down on people who weren’t raised to be conversant in them.

In addition to The Class Ceiling, Friedman has written widely on these issues of social mobility and inequality, including the 2014 book Distinction: The Cultural Currency of a ‘Good’ Sense of Humour. In 2015 he co-wrote Social Class in the 21st Century for Penguin. In the public sphere, he sits on the government’s Social Mobility Commission. He’s currently working with Aaron Reeves on analyzing the data contained in the 120 years of British Who’s Who listings.