Russia failed to halt the collapse of the ruble on Tuesday, leaving President Vladimir Putin facing a full-blown currency crisis that could weaken his iron grip on power.

• December 17, 2014

The global economy is ending the year in a fragile state with factory activity shrinking in China, euro zone business growth remaining weak, and emerging market giant Russia in a spiraling currency crisis.

• December 17, 2014

The European Union will widen its ban on investment in Crimea to target Russian Black Sea oil and gas exploration, EU officials said on Wednesday, tightening sanctions first imposed over Moscow's annexation of the region.

• December 17, 2014

Russia has made constructive moves in recent days toward possibly reducing tensions in Ukraine, U.S. Secretary of State John Kerry said on Tuesday.

• December 16, 2014

Prime Minister Antonis Samaras begged the Greek parliament on Tuesday not to throw away sacrifices made to keep the country solvent, a day before deputies begin a vote that could force a snap election and reignite financial crisis.

• December 16, 2014

U.S. stocks opened lower on Tuesday as a further slide in crude oil prices and the Russian ruble sent traders fleeing from risky assets on global economic concerns.

• December 16, 2014

Canada is set to sign a deal with China to return ill-gotten assets seized from those suspected of economic crimes, the official China Daily reported on Monday, as Beijing works to track down corrupt officials who have fled overseas.

• December 15, 2014

The head of the European Central Bank is set to tell European leaders in stark terms at a summit next week that they need to reform straggling economies or risk blunting an ambitious monetary offensive to help revive the stagnant euro zone.

• December 15, 2014