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Shares in GameStop, the video game store, experienced a dramatic rise in early in 2021. The stock had captured the imagination of many individual investors who heard about it on social media platforms such as TikTok and Reddit. Some investors made a lot of money, while some hedge funds, who had bet against the stock, lost billions. Eventually, though, GameStop shares crashed back to earth and many investors lost the lot. The story has been dramatised by Hollywood in ‘Dumb Money’, currently screening in cinemas. Vivienne Nunis sits down with the film’s director Craig Gillespie and financial journalist Matt Levine to investigate what the GameStop saga teaches us about the power of social media when it comes to influencing the movements of the stock market.(Picture: Paul Dano as Keith Gill in 'Dumb Money'. Credit: Sony Pictures)Presented and produced by Vivienne Nunis

In May this year, Nigerian president Bola Tinubu took office – and announced an end to fuel subsidies. He said the move would free up money for investment in public services and infrastructure projects, but it caused a spike in prices and, in some cases, triggered street protests. We explore the impact of removing the subsidy on residents and businesses, and the knock on-effect for neighbouring countries like Cameroon. Presenter/producer: Bisi Adebayo(Image: Members of the Nigerian Labour Congress (NLC) and Trade Union Congress (TUC), Senior Staff Association of Nigerian Universities (SSANU), Academic Staff Union of Universities (ASUU), National Union of Road Transport Workers (NURTW) holds a placard during a march in Abuja on August 2, 2023. Credit: Getty Images)

In 2020, Napa Valley experienced its most destructive wildfire ever. Vineyards burned, leaving not only direct damage, but more long lasting impact with wine affected by smoke taint. We hear how the perennial presence of wildfires means local businesses face a harsh reality of living with the risk of fire. Sophie Long visits wine makers who are using inflammable materials to build new wineries, changing growing techniques and using technology to deal with tainted wine. And she meets local residents learning firefighting techniques - all to keep smoke out of your wine glass and the billion dollar industry thriving.Presenter: Sophie Long Producer: Samantha Granville(Image: Burned grapes hang on a damaged vine at a vineyard as the Glass fire continues to burn in Calistoga, California on October 1, 2020. Credit: Getty Images)