As the UK officially leaves the EU, what kind of economic future should it aim for? Should it be left entirely open to free market forces, or should the state play a bigger role?

Manuela Saragosa hosts a debate between two people with opposing views. Tim Worstall of the pro-free-market think tank The Adam Smith Institute, and Miatta Fahnbulleh, chief executive of the left-of-centre think tank, the New Economics Foundation.

Plus the BBC's Victoria Craig speaks to the owner of a Swedish café in London who has started helping EU citizens living in the city to complete the necessary paperwork for them to be allowed to stay on post-Brexit.

(Picture: The EU and UK flags sit atop a sand castle on a beach; Credit: Christopher Furlong/Getty Images)

How will China's efforts to contain the corona virus affect the country's economy? Ed Butler asks our economics correspondent Andrew Walker, as well as a sceptical Lawrence Gostin, professor of health law at Georgetown University, who says the belated attempts to stop the spread of the epidemic are simply shutting the stable door after the horse has bolted.

Moreover, how does quarantining affect those caught up in the net? Ed speaks to Ben Voyer, professor of psychological and behavioural science at the London School of Economics. He also hears the personal story of a survivor of the West African Ebola outbreak. Plus the BBC's China social media editor Kerry Allen explains how the Chinese authorities are doing their best to be transparent about the spread of the disease, while avoiding panic.

(Picture: A health worker checks the temperature of a man entering the subway in Beijing; Credit: Betsy Joles/Getty Images)

The UK's decision to give the Chinese telecoms equipment maker partial access to its 5G network risks trade retaliation from the US. But a decision to exclude Huawei altogether might have risked infuriating China.

Ed Butler looks at the actual technical hurdles to making 5G broadband networks secure from foreign snooping with the help of BBC technology reporter Zoe Kleinman, and analyst Emily Taylor of Oxford Information Labs.

Plus Norbert Ruttgen, chairman of the German parliamentary committee for foreign affairs, explains why he believes his own nation should stand strong and not succumb to the threat of foreign trade retaliation when making decisions about national security.

(Picture: A Huawei staff member uses her mobile phone in Shenzhen; Credit: Wang Zhao/AFP via Getty Images)

Are Western brands doing enough to keep forced labour out of their supply chains? Ed Butler speaks to researcher Darren Byler at the University of Colorado, who says tracing products from slave labour institutions in China's Xinjiang province to the west is not easy. Alan McClay from the Better Cotton Initiative explains what they do to monitor slave labour. Kate Larsen, a private consultant specialising in supply chain problems, says Western firms are only slowly understanding the scale of the problems they face, and what they have to do to tackle them.

(Photo: The Chinese flag behind razor wire at a housing compound in China's western Xinjiang region, Credit: Getty Images)

We hear from the western Chinese province of Xinjiang, where perhaps 1.5 million Uighur Muslims are believed to be held in what Chinese authorities call 're-education' camps, and where we hear testimony of forced labour in factories. Vice News journalist Isobel Yeung tell us what she saw on a recent visit to the province. Darren Byler, a social anthropologist affiliated with the University of Colorado at Boulder, tell us about the extent of the forced labour operation there.

(Photo: A watchtower on a high-security facility near what is believed to be a re-education camp where mostly Muslim ethnic minorities are detained, on the outskirts of Hotan, in China's northwestern Xinjiang region, Credit: Getty Images)

Isabel dos Santos faces charges in her native Angola. The daughter of the former long-time president is accused of corruption after a leak of documents. Ed Cropley, former Reuters sub-Saharan Africa bureau chief, discusses what could happen next. Mark Hays from the campaign group Global Witness explains why the role of international banks and accountants in the scandal shouldn't be a surprise. Tom Keatinge from the Royal United Services Institute, a think tank, argues that countries like the UK have made some progress in tackling money laundering.

(Photo: Isabel dos Santos in 2018, Credit: Getty Images)

Why don't more manufacturers embrace the principles of the circular economy? It's a pertinent question, given the dire state of the recycling industry.

Manuela Saragosa speaks to one company that has already implemented the principles of the circular economy. Cardboard box manufacturer DS Smith tracks its products throughout their life, and can reuse the fibres they contain up to 25 times, according to the firm's sustainability lead, Sam Jones.

So why don't more manufacturers do the same? Manuela speaks to circular economy expert Alexandre Lemille, Jarkko Havas of the Ellen MacArthur Foundation, and Josephine von Mitschke-Collande of EIT Climate-KIC in Switzerland.

(Picture: Old plastic water bottle on a beach; Credit: s-c-s/Getty Images)

Katie Prescott revisits the efforts of the Zanzibar government to chart its territory by flying drones across the African spice island.

A year ago she met planning minister Mohammed Juma, the brains behind this ambitious project that aims to clarify land property rights, provide information to local residents about the location of services and amenities, and help the government plan everything from flood management to urban redevelopment.

Katie catches up with Edward Anderson of the World Bank, who headed up the drone mapping project, to find out how the data they have gathered is now being crunched by artificial intelligence algorithms, and being made available to the public.

Producer: Sarah Treanor

(Picture: Aerial view of Zanzibar beach; Credit: den-belitsky/Getty Images)

How strikes and protests affect the economies of major cities. Will Bain visits Paris to see how strikes on the transport network are affecting local businesses, while Ed Butler speaks to author and former Hong Kong civil servant Rachel Cartland about the economic impact of anti-China protests in the region.

(Photo: Protests against the policies of French president Emmanuel Macron in Paris in January, Credit: Getty Images)

The monitoring of employees in the workplace is becoming commonplace. Ed Butler speaks to Sean Petterson, boss of StrongArm Technologies, a company that monitors construction and warehouse workers to reduce workplace accidents. Griff Ferris from the anti-surveillance campaign group Big Brother Watch explains why workplace monitoring could be imposed without employees' consent. Brian Kropp from the advisory firm Gartner questions the value of all the data being generated by monitoring technology.

(Photo credit: Getty Images)

Modern tech is accused of interfering with our sleep, keeping us up late anxiously staring at our phone screens. But could a phone app provide the cure?

Roughly one in three people in most developed countries typically tell surveys that the suffer from insomnia. The BBC's Laurence Knight is one of them. He seeks the advice of sleep physician Dr Guy Leschziner of Guy's Hospital in London, who explains how sleep and anxiety can become a vicious circle.

The good news is that there is a new non-drug treatment that is proving remarkably successful - cognitive behavioural therapy for insomnia. The bad news is that there are nowhere near enough trained clinicians able to provide treatment. That provides a gap in the market - and one that Yuri Maricich of US medical tech firm Pear Therapeutics hopes to fill with a mobile phone app of all things.

(Picture: Cell phone addict man awake at night in bed using smartphone; Credit: OcusFocus/Getty Images)

How the rise of 'microwork' is helping develop artificial intelligence. Ed Butler speaks to New York Times reporter Andy Newman about his experience on Mechanical Turk - the Amazon-owned platform that offers tiny jobs for tiny wages. Microworker Michelle Munoz explains how she makes a good living from online microwork in Venezuela. Ronald Schmelzer, analyst at Cognilytica, an AI market research firm, explains why data-labelling tasks common on microworking sites play a central role in developing artificial intelligence. And researcher and author Mary Gray warns about the impact of microwork on workers' rights.

Producer: Edwin Lane

(Photo credit: Getty Images)