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Esther Duflo was awarded the Nobel Prize for Economics this autumn for her work in the developing world. In her latest book, Good Economics for Hard Times, the French economist turns her attention to the thorniest issues of our time, from global immigration to climate change. She tells Tom Sutcliffe how the lessons from the world's poorest countries can be applied to Western economies, and why we should be wary of complacency.One of the worst economic crises imaginable struck Weimar Germany in the 1920s. Hyperinflation led to prices in 1923 that were astonishingly a billion times higher than they had been in 1914. But historian Richard J Evans explains that the chaos and suffering caused by sky-high prices did not affect all Germans equally. The middle classes saw their mortgages and rent fall to practically nothing, while many businesses expanded rapidly. Evans explores the fracturing of society that followed this hardest of times.The Booker prize-winning author Julian Barnes looks back at France’s Belle Epoque, an era known for luscious Renoir and Monet paintings, for flamboyant nights at the Moulin Rouge, and for widespread glamour and wealth. In The Man in the Red Coat, Barnes looks beneath the surface of this glittering era, and instead finds rampant prejudice, nativism, hysteria and violence. He depicts an era of enormous social change, with striking parallels to our own time.Producer: Hannah Sander.

“The painter must give a completely free rein to any feeling or sensations he may have.” So said the celebrated artist Lucian Freud. His biographer William Feaver tells Andrew Marr how Freud’s work revealed not only something about the subject of the painting, but also what the artist was feeling. The two are combined in a new exhibition of Freud’s self-portraits in which the painter turns his unflinching eye on himself.In 2006 the artist Humphrey Ocean started making a series of portraits of visitors to his studio. Using simple forms and bold colours the painter illuminated something unique about each person. Ocean is the RA Schools’ Professor of Perspective and his work details his observations of everyday life.The underbelly of everyday life in the 18th century is very much in evidence in William Hogarth’s work. As an exhibition at Sir John Soane’s Museum brings together all Hogarth’s painted series for the first time, the art critic Kate Grandjouan explains what he reveals about people from all strata of society, in a London devoid of morality.Producer: Katy Hickman

Hospitality and hostility come from a common root, according to the writer Priya Basil. In her latest book, Be My Guest, she explores the diverse meaning of the Indo-European word ‘ghos-ti’ which combines host, guest and stranger. She tells Kirsty Wark how breaking bread together is a way of breaking down barriers. Shamil Thakrar is the co-founder of the award-winning restaurant chain, Dishoom. He traces the roots of the restaurant’s success, looking back to the sights, sounds and tastes of the much-loved cosmopolitan Bombay of his childhood. While Thakrar’s father and uncle established the food company, Tilda Rice, when they arrived in London in the 1970s, Thomas Harding’s relatives came to Britain in the early 1800s and went on to create the largest catering company in the world: J. Lyons. In Legacy, Harding, looks at how Lyons tea rooms became a fixture on every high street in the country, transforming the way we eat and drink, and democratising eating out.Lyons pioneered different processed foods, from coffee to ice cream. Food writer Joanna Blythman sees processed food as the biggest peril to our health today. She worries that in the rush to adopt a plant-based diet, we will swap nutritious red meat for meat substitutes full of gum and other additives. Blythman also challenges the idea that only by giving up meat can we save our planet from climate change,Producer: Katy Hickman