News Jack Lew’s previous squiggle of a signature, above, and the new one, below

When US President Barack Obama nominated Jack Lew as the new Secretary of the US Treasury in January, the media had one overwhelming concern about the appointment: Lew’s illegible signature, which resembles the doodle of an absent-minded child, would now appear on every US banknote.

American bid to avert global currency war rejected at G20

A bold American plan to redress "global imbalances" in international trade and limit the surpluses that can be run by nations such as China was yesterday rejected out of hand.

King launches attack on 'ruinous' currency wars

Mervyn King, the Governor of the Bank of England, last night issued a thinly veiled attack on the leading protagonists in the global battle over currency valuations, warning that the row could lead to "every country [suffering] ruinous consequences".

Hamish McRae: Will messy skirmishes in currency manipulation lead to all-out war?

Economic Life: Is the UK policy of quantitative easing aiming to make it easier for companies to borrow money, or is it trying to weaken sterling?

Business Diary: Lib Dem VIPs head for Jurys

Much glee at the hotel group Jurys, which is enjoying playing host to the Liberal Democrats, including leader Nick Clegg and his deputy, Simon Hughes, at its Liverpool Jurys Inn – it reckons this is the first time a major political party has stayed at a three-star hotel for its annual conference. Mr Clegg, of course, did not have to endure such trying conditions for too long. He left the shindig early yesterday for a United Nations meeting in New York. One imagines he won't be staying in a Manhattan youth hostel.

Geithner pledges to press China on currency

US Treasury Secretary Timothy Geithner yesterday promised to continue pressing China on foreign exchange as the increasingly fraught global row over the value of national currencies intensified.

US anger mounts over Chinese exchange rate

US lawmakers tore into China for what they said was the country's manipulation of its currency, which they said has been kept artificially low against the dollar to boost its manufacturing sector at the expense of American jobs.

Can assessments in Europe repeat the success of those in America?

Europe's chancelleries are clearly hoping that the stress test will result in the same cathartic effect on markets as their US equivalents did in May last year. The turbulence that sparked European banking supervisors into action is worrying everyone.

The Business On... Jamie Dimon, Chief executive, JP Morgan Chase

Not another Wall Street fat cat?

Osborne's first G20 'unlikely to see progress' on global bank levy

British officials are downplaying the chances of major breakthroughs on banking reform at the G20 summit beginning today in the South Korean city of Busan, which will be Chancellor George Osborne's first major outing on the international stage.

George Osborne welcomes Europe-wide banks levy

Chancellor George Osborne welcomed plans for a Europe-wide tax on banks today but insisted the proceeds should not be ring-fenced to deal with future failures.

Fuld criticises Lehman's investigators 'distortions'

The former head of Lehman Brothers has hit out at the investigator who accused the bank of masking debts with an accounting trick, saying he had "distorted the facts" and Lehman's employees had been "unfairly vilified".

Geithner under fire over Lehman

Timothy Geithner was yesterday forced to defend the Federal Reserve, after congressmen turned fire on its failure to prevent the collapse of Lehman Brothers in 2008, and said the regulator's tools had been "insufficient". US Treasury Secretary Mr Geithner, who was the president of the Fed during the crisis told the House Committee on Financial Services: "With the limited powers that we had, we worked diligently to avoid an outcome that would destabilise the financial system and damage the broader economy." This followed an attack from Spencer Bachus, the ranking Republican member of the panel, who said the Federal Reserve had either been "incompetent or they concealed facts". He continued: "At best, regulators failed to catch the accounting manipulation that permitted Lehman to give a misleading picture of its financial health."

China's economy marches on

The world's most populous country enjoyed growth of 11.9 per cent last year

US-China trade war over yuan edges closer

China bluntly rejects US calls to revalue currency
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The difference between America and Israel? There isn’t one

The difference between America and Israel? There isn’t one

Netanyahu knows he can get away with anything in America, says Robert Fisk
Head of WWF UK: We didn’t send Cameron to the Arctic to see green ideas freeze

David Nussbaum: We didn’t send Cameron to the Arctic to see green ideas freeze

The head of WWF UK remains sanguine despite the Government’s failure to live up to its pledges on the environment
Author Kazuo Ishiguro on being inspired by shoot-outs and samurai

Author Kazuo Ishiguro on being inspired by shoot-outs and samurai

Set in a mythologised 5th-century Britain, ‘The Buried Giant’ is a strange beast
With money, corruption and drugs, this monk fears Buddhism in Thailand is a ‘poisoned fruit’

Money, corruption and drugs

The monk who fears Buddhism in Thailand is a ‘poisoned fruit’
America's first slavery museum established at Django Unchained plantation - 150 years after slavery outlawed

150 years after it was outlawed...

... America's first slavery museum is established in Louisiana
Kelly Clarkson: How I snubbed Simon Cowell and become a Grammy-winning superstar

Kelly Clarkson: How I snubbed Simon Cowell and become a Grammy-winning superstar

The first 'American Idol' winner on how she manages to remain her own woman – Jane Austen fascination and all
Tony Oursler on exploring our uneasy relationship with technology with his new show

You won't believe your eyes

Tony Oursler's new show explores our uneasy relationship with technology. He's one of a growing number of artists with that preoccupation
War with Isis: Fears that the looming battle for Mosul will unleash 'a million refugees'

The battle for Mosul will unleash 'a million refugees'

Aid agencies prepare for vast exodus following planned Iraqi offensive against the Isis-held city, reports Patrick Cockburn
Yvette Cooper: We can't lose the election. There's too much on the line

Yvette Cooper: We can't lose the election. There's too much on the line

The shadow Home Secretary on fighting radical Islam, protecting children, and why anyone in Labour who's thinking beyond May must 'sort themselves out'
A bad week for the Greens: Leader Natalie Bennett's 'car crash' radio interview is followed by Brighton council's failure to set a budget due to infighting

It's not easy being Green

After a bad week in which its leader had a public meltdown and its only city council couldn't agree on a budget vote, what next for the alternative party? It's over to Caroline Lucas to find out
Gorillas nearly missed: BBC producers didn't want to broadcast Sir David Attenborough's famed Rwandan encounter

Gorillas nearly missed

BBC producers didn't want to broadcast Sir David Attenborough's famed Rwandan encounter
Downton Abbey effect sees impoverished Italian nobles inspired to open their doors to paying guests for up to €650 a night

The Downton Abbey effect

Impoverished Italian nobles are opening their doors to paying guests, inspired by the TV drama
China's wild panda numbers have increased by 17% since 2003, new census reveals

China's wild panda numbers on the up

New census reveals 17% since 2003
Barbara Woodward: Britain's first female ambassador to China intends to forge strong links with the growing economic superpower

Our woman in Beijing builds a new relationship

Britain's first female ambassador to China intends to forge strong links with growing economic power
Courage is rare. True humility is even rarer. But the only British soldier to be awarded the Victoria Cross in Afghanistan has both

Courage is rare. True humility is even rarer

Beware of imitations, but the words of the soldier awarded the Victoria Cross were the real thing, says DJ Taylor