Low oil prices could make us fatter - economist Tim Harford tells BBC Business Daily on World Service about the unintended consequences of the plummeting oil price. He says that there is a correlation between falling petrol prices and an increase in restaurant visits - making waistlines bigger.

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BBC correspondent Nick Thorpe is reporting on today's 24-hour general strike in Greece. Trade unions are protesting at planned reforms to the country's pension and social security systems.

There will be no public transport, schools will shut be closed and hospitals will only provide emergency care. 

Under the terms of its international bailout, Greece has to cut pension spending by $2bn this year. The left-wing government of Prime Minister Alexis Tsipras says it wants to protect the elderly as much as possible and plans to increase social security contributions.

But unions say the compromise will only increase unemployment. 

The top five risers on the FTSE 100 today are all miners, with Anglo American at the head of the list with an 8% rise. Glencore, Rio Tinto and BHP Billiton are all up more than 5%. 

The blue-chip index is still up 1.2%, or 70 points, at 5,911 points.

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New UK car sales last month reached an 11-year high for January, according to industry figures. The Society of Motor Manufacturers and Traders said 169,678 new cars were registered in the UK - 2.9% higher than January 2015. 

Last year a record 2.6 million cars were sold in the UK - up 6.3% on 2014. 

However, Volkswagen continued to lose ground, with VW-branded vehicles slipping to a 7.1% market share, down from 8.5% a year ago. 

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More on those Halifax house prices from Samuel Tombs at Pantheon Macroeconomics, who sums up the situation in one word: "soaring".

BBC Business Live

Jim Farley, chief executive of Ford Europe, has switched to the Business Live studio where the thorny issue of Brexit is on the agenda. He's asked what it would mean for his company.

"We have been on the record many times because of the importance of the EU as an open market for us," he says. "We have 14,000 employees here in the UK, we build nearly 2m engines, we have 3,000 engineers working on global engineering here in the UK's second-largest engineering R&D centre for the automotive industry and for us having that free market available in Europe is critical.

"We export 85% of those engines, most of them to Europe. Any interruption, any uncertainty will be a risk for our employees."

IHS economist Howard Archer tweets:

BBC Business Live

Former BP chairman tells BBC economics editor Kamal Ahmed on Business Live that although the North Sea oil industry is a "very diminished" part of the global industry, we have reason to be grateful.

"One of the things that is extraordinary about the North Sea is that we all used to think - because I was there when it started - that it would all be over by the year 2000. We would turn off the lights," he says.

"But 2000 came and went. We've had some extra time here, and so we should all be grateful."

BBC Radio 5 Live

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You can't be the boss of a car company these days without being grilled over the emissions scandal. 

On 5 live the chief executive of Ford Europe, Jim Farley, was asked if he was sure that none of the issues that VW had seen had gone on at Ford. 

He insisted: "We are absolutely confident. In fact, the first thing we did was to communicate to all of our employees here in the UK that we don't have any defeat devices and we support moving to a real world emissions testing for all emissions".   

London has had a strong start to the day, with the FTSE 100 adding 1.4%, or 82 points, to 5,919 points in the first 10 minutes of trading. 

Hong Kong has also had a good day, with the Hang Seng index closing up 1%.

Tokyo stocks ended lower as a stronger yen hit exporters. Shares in Panasonic and Hitachi sank after they warned that China's slowdown was weighing on their results.

The Nikkei 225 index fell 0.85%, while the Topix index was down 1.25%.

Sharp jumped almost 17% after reports that it favours accepting a $5bn bailout from Taiwan's Foxconn. 

Energy firms were among the few gainers after oil prices surged on the back of a weaker dollar and hopes for talks to cut production. 

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That red ink just keeps on coming today: Credit Suisse posted a net loss of 2.94bn Swiss francs (£2bn) - considerably worse than the 2.12bn Swiss francs expected by analysts. It's the bank's first annual loss since 2008. It plans to cut about 4,000 jobs in response.  

Chief executive Tidjane Thiam (pictured) said: "Market conditions in January 2016 have remained challenging and we expect markets to remain volatile throughout the remainder of the first quarter of 2016 as macroeconomic issues persist." 

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Vodafone has posted a 1.4% rise in revenue in its third quarter - its sixth consecutive quarter of growth - as recovery in Europe gained pace. The mobile operator reported organic service revenue of £9.2bn, in line with analyst estimates. 

Today Programme
BBC Radio 4

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Professor Paul Ekins of University College London has been talking to the Today programme about Shell's profits slide.

"It's pretty ugly but none of us should be surprised by it," he says. "Over the last year to 15 months oil prices have gone down by 70% so for its earnings only to have gone down by 53% you can see it's done some cost-cutting and some savings."

Spare a thought today for poor Chris Hill-Scott, who's just missed out on a whopping pay day, according to The Times. He set up a firm in 2008 with two university friends called Swiftkey, a mobile phone app. The firm has now been sold to Microsoft for £170m. 

Trouble is, Mr Hill-Scott left the company soon after it was formed for a career in photography, apparently handing back his shares in return for - a bicycle...

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AstraZeneca expects profits to fall by "a low to mid single-digit percentage" figure this year as the arrival of cheap generic copies of the cholesterol treatment Crestor offsets growth in sales of new medicines, the drug maker says.

Revenue for the fourth quarter of 2015 fell 5% to $6.4bn, hit by earlier drug patents expiring, Astra says in a statement, external.