Do we have a responsibility to inform ourselves about the state of the world? Is the experience of some people valued more highly than that of others? Matthew Sweet investigates the ethics of knowledge in Radio 4's round table discussion programme.

Part of a series of programmes across Radio 4 looking at what drives us apart and how to bring us together – look for Common Ground.

What does trade set in motion beyond the exchange of goods? Anne McElvoy explores the movement of commerce across time as a carrier of habits, ideas, ambitions and influence, as well as of material things. From the early modern world, where trade was entangled with colonial expansion and shaped by unequal, sometimes unexpected encounters, to the supply chains and diplomatic negotiations of the present, this discussion asks how economic exchange has also mediated cultural contact. Alongside rivalry and wealth, how has trade given rise to its own languages of civility, reciprocity and trust?

Guests include:

Nandini Das is Professor of Early Modern Literature and Culture at Oxford University and author of This Little World: A New History of Tudor and Stuart England

Jeremy Hunt is a former Chancellor of the Exchequer and the author of Can We Be Rich Again?

Soumaya Keynes is an economist and columnist at the Financial Times and the author of How to Win a Trade War

Professor Rana Mitter is ST Lee Chair in US-Asia Relations at the Harvard Kennedy School

Dr Lauren Working is a Lecturer in Early Modern Literature at York University and author of A Golden World: How the Americas Transformed Renaissance England

Producer: Ruth Watts

Shahidha Bari investigates the child’s-eye view of the world. From navigating AI to living through war and the joys of reading, what makes children’s perspectives so distinctive? With writer Katherine Rundell, psychotherapist Josh Cohen, nature writer and novelist Elizabeth-Jane Burnett, historian Emma Butcher and psychologist Nomisha Kurian.

Producer: Luke Mulhall

How has the figure of the outsider or eccentric been used to explore English culture, history, politics, and our relationship with nature and the countryside? Matthew Sweet discusses, including a re-reading of Sylvia Townsend Warner's 1926 novel Lolly Willowes, in which a middle aged woman leaves her suburban life behind to become a witch. With philosopher Charles Foster, literary historian Jade Munslow Ong, political philosopher Sophie Scott Brown, and psychotherapist Mark Vernon.

300 years after the publication of Jonathan Swift’s Gulliver’s Travels, Matthew Sweet looks at satire, past and present. How can satirists reflect critically and humorously on political events in an age of social media saturation and at a time when reality can seem stranger than fiction?

He is joined by:

Andrew Hunter Murray, comedian, writer and host of Radio 4's The Naked Week. His new book is Bad Deeds.

Jan Ravens, actor and impressionist, known for her work on Spitting Image and Radio 4's Dead Ringers

Rosie Holt, actor and comedian. Rosie's shows Churchill's Urinal and Rosie Holt: The Illegal Aliens have landed! will both be at Edinburgh Festival.

Tom Peck, Parliamentary sketch writer for The Times

and

Siôn Parkinson, artist, Research Associate at the Royal Botanic Garden Edinburgh and 2026 AHRC/BBC New Generation Thinker.

Producer: Eliane Glaser

Anne McElvoy and guests discuss the concentration, distribution and morality of wealth now and look back at An Inquiry into the Nature and Causes of the Wealth of Nations, published by the Scottish economist and philosopher Adam Smith in 1776, which gives an early account of what builds nations' wealth and introduced concepts such as free markets, the division of labour, and productivity.

Our guests for this episode of BBC Radio 4's Friday night ideas discussion programme are:

Vicky Pryce, economist and business consultant and co-author of Mismanaged Decline What Politicians Won’t Tell You About the Economy

Maha Rafi Atal, Adam Smith Senior Lecturer in Political Economy at the University of Glasgow and author of the forthcoming book When Companies Rule: Corporate Power from the East India Company to Silicon Valley. The University is holding a series of events to mark the 250th anniversary of the publication of The Wealth of Nations.

Dafydd Daniel, Lecturer in Divinity at the University of St Andrews

Allister Heath, business journalist

Hettie O'Brien, Guardian writer and author of The Asset Class: How Private Equity Turned Capitalism Against Itself

Producer: Eliane Glaser

You can hear another discussion about searching for economic solutions in the most recent episode of Start the Week, Radio 4's Monday morning discussion programme where Tom Sutcliffe was joined by Mariana Mazzucato, Jeremy Hunt and Patrick Foulis.

Freedom is one of the leading values of our society. But with freedom comes responsibility, which is a much more contested principle. Deciding where responsibility lies, and what it means to take it, is the job of the courts. It is also debated in Parliament and in the media. It is often at issue on the psychotherapist’s couch. For Radio 4’s arts and ideas discussion programme, Shahidha Bari gathers a panel of experts who deal with the concept of responsibility in very different contexts. Recorded in front of an audience at the Hay Festival, Shahidha's guests are:

Baroness Hale served as the most senior judge in the UK. Her books include Spider Woman, and With the Law on Our Side

Producer: Luke Mulhall

The links between food and philosophy, ideas about experimentation, taste and how food and traditions become part of our identity are explored by Matthew Sweet in Radio 4's round-table discussion programme. His guests are:

Food writer Felicity Cloake, who writes a Cook the Perfect column for The Guardian newspaper and has published books called Red Sauce, Brown Sauce: A British Breakfast Odyssey, Peach Street to Lobster Lane: Coast to Coast in Search of Real American Cuisine and now her debut novel The Underdog.

Professor Barry Smith, director of the Institute of Philosophy at the University of London's School of Advanced Study

Philosopher Suki Finn, whose book What's in a Donut Hole? uses food to explore classic philosophical puzzles

Author Samantha Ellis, whose book Chopping Onions on My Heart is a memoir about Iraqi Jewish food, language and culture

Producer: Eliane Glaser

‘Technologies of the self’ is a phrase from the French philosopher Michel Foucault to describe things people might do to shape the people they are, like dieting, exercise, journaling, or in an earlier age perhaps like prayer, or confession. Shahidha Bari hosts Radio 4's roundtable discussion programming discussing how this idea might help us make sense of the age of social media influencers and lifestyle trends.

Elizabeth Oldfield, host of The Sacred podcast, author of Fully Alive: Tending The Soul In Turbulent Times

Producer: Luke Mulhall

From taking the middle ground to the mid-life crisis, Middle England to middle managers, to being a middle child - is occupying a position in the middle out of fashion?

Journalist Catherine Carr. Her new book Who's the Favourite?: The Loving, Messy Realities of Sibling Relationships explores being a middle child and the relevance of birth order.

Writer and broadcaster Mark Lawson, who has written novels set in Middle England.

Symeon Brown, home affairs correspondent at Channel 4 news, whose forthcoming book is The Good, the Black and the Boujee: The Story of Britain's New Black Middle Class.

Adrian Wooldridge, journalist, author and global business columnist at Bloomberg Opinion. His recent book is Centrists of the World Unite! The Lost Genius of Liberalism.

Claire Ainsley, former adviser to Keir Starmer, now at the Progressive Policy Institute.

Producer: Eliane Glaser