Let’s say you were asked to name the greatest health risks facing the planet. Priceton University economist Ramanan Laxminarayan, founder and director of the One Health Trust, would urgently suggest you include anti-microbial resistance near the top of that list.

“We're really in the middle of a crisis right now,” he tells interview David Edmonds in this Social Science Bites podcast. “Every year, about 5 million people die of infections that are associated with antibiotic resistance -- 5 million. That's nearly twice the number of people who die of HIV, TB and malaria, put together -- put together. Antibiotic resistance and associated deaths are the third leading cause of death in the world, after heart disease and stroke. So you're talking about something that's really, really big, and this is not in the future. It is right now.”

The underlying problem, simply put, is that humans are squandering perhaps the greatest health innovations in the last century by using antibiotics stupidly, allowing pathogens to develop resistance and thus rendering existing antibiotics worthless.

For the last 30 years and in particular through One Health Trust and as director of the World Health Organization Collaborating Center for Antimicrobial Resistance, Laxminarayan has labored to make both shine a light on anti-microbial resistance and push for policies to address it. This, he tells Edmonds, is a social science problem even more so than a medical science problem – but not the exclusive province of either. “I think one of the failures of economics,” he says, “in some ways, is that we don't take the trouble to understand the nitty gritty of the actual other field, especially when it deals with health economics or environmental economics.”

In addition to his role as a senior research scholar at Princeton, Laxminarayan is an affiliate professor at the University of Washington, a senior associate at the Johns Hopkins Bloomberg School of Public Health, and a visiting professor at the University of Strathclyde.

Flexibility is a cardinal virtue in physical fitness, and according to political psychologist and neuroscientist Leor Zmigrod, it can be a cardinal virtue in our mental health, too. How she came to that conclusion and how common rigid thinking can be are themes explored in her new book, The Ideological Brain.

“I think that from all the research that I've done,” she tells interviewer David Edmonds in this Social Science Bites podcast, “I feel that what rigid thinking does is it numbs people to the complexity of their own experience, and it simplifies their thinking. It makes them less free, less authentic, less expansive in their imagination.” And while she acknowledges there are times being unbending may be seen as an asset, “rigid thinking is rarely good for you at an individual level.”

In this podcast, she details some of the work – both with social science experimentation and with brain imaging – that determines if people are flexible in their thinking, what are the real-life benefits of being flexible, if they can change, and how an ideological brain, i.e. a less flexible brain, affects politics and other realms of decision-making.

“When you teach or when you try to impart flexible thinking, you're focusing on how people are thinking, not what they're thinking,” Zmigrod explains. “So it's not like you can have a curriculum of ‘like here is what you need to think in order to think flexibly,’ but it's about teaching how to think in that balanced way that is receptive to evidence, that is receptive to change, but also isn't so persuadable that any new authority can come and take hold of your thoughts.”

Zmigrod was a Gates Scholar at Cambridge University and won a winning a Junior Research Fellowship at Churchill College there. She has since held visiting fellowships at Stanford and Harvard universities, and both the Berlin and Paris Institutes for Advanced Study. Amond many honors the young scholar received are the ESCAN 2020 Young Investigator Award by the European Society for Cognitive and Affective Neuroscience, the Glushko Dissertation Prize in Cognitive Science by the Cognitive Science Society, . the 2020 Women of the Future Science Award and the 2022 Women in Cognitive Science Emerging Leader Award, and the 2022 Distinguished Junior Scholar Award in Political Psychology by the American Political Science Association. 

When economic news, especially that revolving around working, gets reported, it tends to get reported in aggregate – the total number of jobs affected or created, the average wage paid, the impact on a defined geographic area. This is an approach labor economist David Autor knows well. But he also knows that the aggregate often masks the effect on the individual.

In this Social Science Bites podcast, Autor, the Daniel (1972) and Gail Rubinfeld Professor, Margaret MacVicar Faculty Fellow, Google Technology and Society Visiting Fellow at the Massachusetts Institute of Technology, examines two momentous changes to global economics and how they play out for individuals. He explains to interviewer David Edmonds how the rise of China’s manufacturing dominance and the widespread adoption of artificial intelligence likely are and will affect individual people accustomed to do specific tasks for pay.

What he finds is not as straightforward as the headlines alluded to above. Take China and its remarkable ascent and how that impacted the United States.

“[The rise] benefited a lot of people. It lowered prices. It allowed American companies to kind of produce a lot of products more cheaply. You know, it's hard to imagine Apple's growth without China, for example, to do all that assembly, which would have been extremely expensive to do in the United States. At the same time, it displaced a lot of people, more than a million, and in a very geographically and temporarily concentrated way, extremely scarring the labor market. Now those people also got lower prices, but that's not even remote compensation for what they lost. And now there are new jobs -- even in those places where those trade shock occurs -- but it's not really the same people doing them. It's not the people who lost manufacturing work.”

Concerns about these shocks have been widespread in the 2020s, but the tough if erratic talk about tariffs coming from the U.S. president centers on the idea of restoring something (while ignoring question of that thing ever existed or if it makes sense to go back). Autor argues that the administration actually is asking the right question – but they are arriving at the wrong answers, He notes that the U.S. currently has a half a million unfilled manufacturing jobs open already, a sizeable figure relative to the nation’s 13 million manufacturing workers. But that number itself is roughly a tenth of China’s 120 million.

“We cannot compete with them across every front. .. What we should be very deeply worried about is losing the frontier sectors that we currently maintain. Those are threatened. So aircraft, telecommunications, robotics, power generation, fusion, quantum computing, batteries and storage, electric vehicles, shipping. These are sectors that we still have (except for shipping, actually) but China is making incredibly fast progress, and instead of trying to get commodity furniture back, we need to think about the current war we're in, not the last war.”

At MIT, Autor is co-director of the School Effectiveness and Inequality Initiative, while off campus he is a research associate and co-director of the Labor Studies Program at the National Bureau of Economic Research.

Are university students unhappy? We won’t generalize, but many are, and this was something Bruce Hood noted. Being an experimental psychologist who teaches at the University of Bristol,  an opportunity presented itself. Why not start a course on the science of happiness, and while teaching it collect data from the students attending?

The resulting course (created with advice from one his former students, Laurie Santos) proved popular, and Hood last year published a book, The Science of Happiness: Seven Lessons for Living Well. In this Social Science Bites podcast, Hood explains to interviewer David Edmonds the scientific basis of happiness, some details on how to measure it, and then some of those lessons for harvesting its benefits.

Hood explains how scholarship has determined some genetic basis for happiness, how circumstances contribute to but don’t dictate happiness, and how individuals focus more on the negative than the positive, which clearly not the most nurturing environment for happiness. There is a bias towards negativity, he says, “So that's why we know the negative things more quickly and more loudly than the positive.”

That sounds bad (see – negative). But there’s another bias at play, one that also favors optimism, that Hood attempts to harness. “So we tend to see the future as grim, and we have these distortions. But what's interesting, if you ask people, ‘Do you think to yourself individually you'll be better off in five years’ time?’ Then it seems to switch. People seem to say, ‘Yeah, I think I will be better.’ So, it's a kind of interesting paradox that we think the world's going to hell in a basket. And yet, as individuals, we think things can get better.”

Hood’s research interests arose around the visual development of infants, and then evolved to include intuitive theories, self-identity, essentialism and the cognitive processes behind magical thinking in adults. It was in relation to those that Hood first appeared on Social Science Bites, addressing the human belief in the supernatural. You can listen to that podcast, and also enjoy a lovely Alex Cagan poster built around the episode.

Let’s cut to the chase: “The overwhelming majority of murders in the United States involve guns,” says economist Jens Ludwig. “And in fact, most of the difference in overall murder rates between the United States and other countries are due to murders with guns.”

This may seem intuitively obvious to outside observers, but studying guns within the United States has long been a fraught endeavor, and the amount of research isn’t commensurate with the impact on U.S. society. That said, Ludwig has taken on exploring the roots of American gun violence, work that serves as grist for the Crime Lab he directs at the University of Chicago and for many of his books, including his latest, Unforgiving Places: The Unexpected Origins of American Gun Violence. What’s he’s found is that the folk wisdom around gun violence doesn’t rally hold up to the evidence.

In this Social Science Bites episode, he explains to interviewer David Edmonds how – using insights about ‘system one’ and system two’ thinking developed by Daniel Kahneman – cognition in individuals has more explanatory power than traditional variables like poverty, education and environment.

“I think system one plays an underappreciated role in all interpersonal violence, all of the issues, and this way of seeing what is driving violent behavior among people is equally true for knife violence in the UK and on and on,” Ludwig says. “So I think this is really a universal thing about people's behavior. This sort of frame on the problem helps make sense of a bunch of patterns in the data.”

Ludwig is the Edwin A. and Betty L. Bergman Distinguished Service Professor at the University of Chicago, Pritzker Director of the Crime Lab and codirector of the Education Lab at that campus, and codirector of the National Bureau of Economic Research’s working group on the economics of crime.

He and his labs are routinely recognized for their work. The Crime Lab in 2014, for example, received a MacArthur Award for Creative and Effective Institutions, while eight years earlier Ludwig himself was awarded the Association for Public Policy Analysis and Management’s David N. Kershaw Prize for Contributions to Public Policy by Age 40. Some of the books he’s co-authored or co-edited include 2000’s Gun Violence: The Real Costs, 2003’s Evaluating Gun Policy, and 2012’s Controlling Crime: Strategies and Tradeoffs.

A new people has emerged in the digital age, that of ‘internet famous’ celebrities. And that new people has a class of social scientist focused on studying them, the digital anthropologist. Crystal Abidin, a professor at Australia’s Curtin University and founding director of the Influencer Ethnography Research Lab there, is such as digital anthropologist. Her research covers influencers – both adult and child and the general pop culture centered on social media, especially in the Asia Pacific region.

In this Social Science Bites podcast, Abidin offers interviewer David Edmonds a metaphor to understand how her cyber-ethnography and digital anthropology work in practice. “I often think of anthropologists as Mars rovers that you throw into these unknown planets, and slowly but surely, we roll around the planet looking for bits of data, bits of material that might be new or novel. We're not going for quantity and volume at this scale. We're looking for what's neglected, unseen, sidelined by the margins, not yet mainstream. And we're measuring how much of these things are characteristic of the planet and worthy of study. … [A]s an anthropologist, given that my fidelity is to people and their cultures, I don't always only go for the shiniest, most mainstream thing. I often look for what's left behind.”

In this conversation, though, Abidin talks about something very shiny indeed – those professional internet celebrities known collectively as “influencers.” She explains how while the top influencers do generate the paydays seen in popular media, the ecosystem extends down to individuals who are spending their own money in hopes of someday making it big. She also draws a distinction between influencers and creators, and also between influencers and memes. 

Abidin also dives into regional differences in influencer culture, using her own detailed analysis of Asia Pacific influencer cultures, to explore regional differences that should be understood when assessing content on global platforms. “[I]f we were to discount the hegemony of American popular culture and their stronghold and a lot of social media, the palette is so diverse, the markets are so varied, that trends go in many different directions. So we need to sometimes think about who we are speaking about, what the superpower of the day is, and whenever we make these generalizations, what are the limitations? Who's not included in them?”

In addition to her role at Curtin, Abidin founded the TikTok Cultures Research Network and is an affiliate researcher with the Media Management and Transformation Centre at Jönköping University. She was named an Australian Research Council DECRA Fellow for 2019 to 2024. Currently the editor-in-chief of Media International Australia, she has written or edited a number of books that bridge popular concerns with academic rigor, including 2018’s Internet Celebrity: Understanding Fame Online and this year’s Influencer Marketing: Interdisciplinary and Socio-Cultural Perspectives (co-edited with Lauren Gurrieri and Jenna Drenten),

Everyone, we assume, wants to be their best person. Few of us, perhaps, none, hits all their marks in this pursuit even if the way toward the goal is generally apparent. If you want to know how to do a better job hitting those marks, whether its walking 10,000 steps, learning Esperanto, or quitting smoking, a good person to consult would be Katy Milkman. Working at the nexus of economics and psychology, Milkman – the James G. Dinan Professor at The Wharton School of the University of Pennsylvania and co-founder of the Behavior Change for Good Initiative at Penn – studies the almost alchemical process of turning good intentions into solid actions.

In this Social Science Bites podcast, she details for interviewer David Edmonds some of the biases and some of the critical thinking processes that both define and then overcome the obstacles to changing our behavior. These range from concepts with such academic names as present bias and temptation bundling to the more colloquial ‘what the hell effect’ and its antidote, the emergency reserve. But the point of her research – especially as it gets translated to the public through her podcast Choiceology or her 2021 book How to Change: The Science of Getting from Where You Are to Where You Want to Be – is to find practical ways to change yourself.

For example, she explains that “it's important for goals to be measurable and achievable, although they should be a stretch. You know, if your goal is ‘exercise more,’ how can you measure that? How could you even set a commitment device, for instance? … It's also important to have a plan of, sort of, when will I do it, where will I do it, how will I get there. These are called “implementation intentions.” I think the most important part of them is they associate a cue with the action. So just like an actor needs a cue to know when to say their lines, we need to not forget to take action on our goals.”

Her influence in turn is felt practically. Choiceology, for example, is sponsored by the brokerage house Charles Schwab, and Milkman has been a consultant for organizations ranging from the U.S. government and Walmart to 24 Hour Fitness and the American Red Cross. She is a former president of the Society for Judgment and Decision Making and a fellow of the Association for Psychological Science.

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There is a natural desire on the part of governments to ensure that their future citizens -- i.e. their nation's children -- are happy, healthy and productive, and that therefore governments have policies that work to achieve that. But good intentions never guarantee good policies.

Here's where economist Janet Currie steps in. Currie is the Henry Putnam Professor of Economics and Public Affairs at Princeton University, where she co-directs, with Kate Ho, the Center for Health and Wellbeing. In this Social Science Bites podcast, the pioneer in assessing the nexus of policy and parenting explains to interviewer David Edmonds how programs like Head Start in the United States and Sure Start in the United Kingdom provide real benefits over time to both their young clients as youths and later on in life.

After looking at a variety of programs and interventions, she details that "the general conclusion [is] that the programs that were spending more money directly on the children tended to have better outcomes."

Her findings suggest this holds true even when similar approaches don't have the same effect on adults. "[I]n the United States," she says, "if you give health insurance to adults who didn't have health insurance, they use more services, and they are happier about that, that they get to use services. But it doesn't actually seem to save very much money. On the other hand, when you cover children from a young age, that is cost effective, that does save money, and in fact, the costs of the program probably pay for themselves in terms of the reduction in illness and disability going forward."

In addition to her work at Princeton, Currie is also co-director of the National Bureau of Economic Research's Program on Families and Children. She has been president of the American Economic Association for 2024 and has also served as president of the American Society of Health Economics, the Society of Labor Economics, the Eastern Economic Association, and the Western Economic Association. Two years ago, she received the Klaus J. Jacobs Research Prize "for her foundational work on the influence of context such as policy decisions, environment, or health systems on child development."

As an investigative journalist, Julia Ebner had the freedom to do something she freely admits that as an academic (the hat she currently wears as postdoctoral researcher at the Calleva Centre for Evolution and Human Sciences at the University of Oxford) she have been proscribed from doing - posing as a recruit to study violent extremist groups. That, as you might expect, gave her special insight into how these groups attract new blood, and on the basis of that work, as well as more traditional research for groups such as the Quilliam Foundation and the Institute for Strategic Dialogue, she has been hosted by the United Nations, national legislators, intelligence agencies and Big Tech.

In this Social Science Bites podcast, Ebner details some of the mechanics of her undercover research for host David Edmonds before discussing the prevalence and characteristics of violent extremist groups. Given the variety of ways governments tally these groups and the groups' own amorphousness in an online age, determining whether such groups are on the rise - which seems to be a perennial fear - proves devilishly difficult to determine. "I would say," Ebner concedes, "it often comes and goes in waves, but now we are seeing a very strong wave of very young people, including minors, radicalizing towards violence."

That radicalization proves remarkably similar regardless of ideology, Ebner notes. Plus, it's not straightforward determining who might be open to recruitment. "Based on my research, I would say that everyone is potentially susceptible to radicalization, especially in vulnerable moments in our lives, and everyone has them."

Ebner serves up that potential universality in a different context to close the podcast. It's what keeps her up at night: "I think the mainstreaming of some of the extreme concepts and ideas and language that I used to observe only in the darkest corners of the internet, but that is now being heard in parliaments, that is now being seen in large social media channels of influencers or voiced by politicians."

Given her journalistic chops, it is no surprise that Ebner has written extensively on extremism in a series of well received books. The Rage: The Vicious Circle of Islamist and Far-Right Extremism, received the Bruno Kreisky Award for the Political Book of the Year 2018; Going Dark: The Secret Social Lives of Extremists was a Telegraph Book of the Year 2020 and Germany publishing's Wissenschaftsbuch des Jahres 2020 ("Science Book of the Year") Prise as well as the Dr Caspar Einem Prize from the Association of Social Democratic Academics; and Going Mainstream: How Extremists Are Taking Over, was published in 2023.