Miners dig for diamons in Zimbabwe. As a compact, stable, and transferable store of value, diamonds offer enormous advantages to smugglers, money launderers, and tax evaders. 2:03

In the spring of 2005, Erez Daleyot, a Belgian-Israeli diamond tycoon with some dubious connections, paid a visit to his Swiss bankers at HSBC Private(...)

Activists protest near the Manhattan apartment of billionaire and Republican financier David Koch last June in New York City. The demonstrators were protesting against the campaign contributions by the billionaire Koch brothers. Photograph: Spencer Platt/Getty Images

With just 646 days to go, the 2016 US presidential race is already starting up and the ring is packed with various Republicans vying to prove who is t(...)

 Quantitative easing wasn’t the only item on the agenda in Davos. Photographer: Chris Ratcliffe/Bloomberg

While the ECB’s announcement of a quantitative easing programme dominated events in Davos last week, a range of other issues were quietly under discus(...)

 Quantitative easing wasn’t the only item on the agenda in Davos. Photographer: Chris Ratcliffe/Bloomberg

While the ECB’s announcement of a quantitative easing programme dominated events in Davos last week, a range of other issues were quietly under dis(...)

French President Francois Hollande: The ECB’s decision “should not stop us from carrying out reforms”

France has committed itself to faster economic reforms aimed at boosting growth in the wake of the ECB decision to inject billions into the European e(...)

Seasonal market patterns seemingly suggest the recent market rally is just the beginning. Historically all market gains have come during over the Nove(...)

The Apple Watch hype has been remarkable, given the device’s obvious shortcomings. Do people need or want a phone on their wrist? Why bother, when sma(...)

George Soros:  “To others, being wrong is a source of shame; to me, recognising my mistakes is a source of pride. Once we realise that imperfect understanding is the human condition, there is no shame in being wrong, only in failing to correct our mistakes.” Photograph: Brendan Smialowski/ AFP/Getty Images)

George Soros is 84 today. His career is remarkable both for its longevity and its returns – his Quantum fund has generated $39.6 billion in profits ov(...)

Axel Kicillof, Argentina’s economy minister: said “vulture funds” had rejected a renewed offer from the government and it was “impossible” to pay them more. Photograph: EPA/Jason Szenes

Some of the world’s largest hedge funds have been snapping up Argentine stocks, betting on an economic recovery in the troubled country despite it def(...)

Paul Singer, billionaire founder and president of Elliott Management.   Photograph: Jacob Kepler/Bloomberg

The hedge fund firm of billionaire Paul E Singer has about 300 employees, yet it has managed to force Argentina, a nation of 41 million people, into a(...)