Yellen's speech cited persistent labor market slack but noted faster recovery in the sector could accelerate the timing of a Fed interest rate hike.» Read More
The falling yen coupled with a fall-off in Chinese investment inflows "increasingly resembles" the run-up to the 1997 currency crisis, said Albert Edwards, Societe Generale's ultra-bearish strategist.
The yen tumbled against the dollar and euro Tuesday, reversing the previous session's sharp gains as investor anxiety triggered by a record plunge in gold prices eased.
The yen rose from recent multi-year lows against the dollar and euro on Monday amid renewed worries about the global economy.
The dollar declined from a four-year peak against the yen Friday after a fall in U.S. retail sales reinforced expectations the Fed will keep its monetary policy loose.
The dollar rose to another four-year high against the yen on Thursday, closing in on the key 100 yen level.
The rush to build a more reliable exchange for bitcoin is under way after a price crash disgruntled customers who directed their anger against the currency's major exchange.
The dollar rose to a four-year high against the yen on Wednesday, edging closer to the key 100-yen mark after release of the U.S. Federal Reserve's March meeting minutes.
Demand for 500 euro bills as a store of value has started to decline, according to a currency strategist, who told CNBC that the note is used extensively for criminal activity and should be abolished.
The dollar edged down from a near four-year high against the yen on Tuesday as traders booked profits on its sharp rally, but the yen's weakening trend remained intact.
The yen plummeted to its lowest against the dollar in nearly four years and reached a three-year trough versus the euro on Monday after the Bank of Japan kicked off its aggressive monetary easing program in an attempt to beat persistent deflation.
The U.S. dollar weakened against most major currencies on Friday, hitting nearly two-week lows against the euro, as weaker-than-expected jobs data raised concerns that the pace of recovery in the American labor market has slowed.
Digital currency bitcoin has seen a spike in interest coinciding with a huge rally, but it has divided opinion greatly with analysts differing on whether it's an advancement in the monetary system or just a large ponzi scheme that should be avoided.
Interest in bitcoins has reached fever pitch around the world helping the price soar to an all-time high earlier this week, and Finland is firmly tuned into the zeitgeist more so than even the U.S. or Japan.
The dollar and euro made their largest percentage gains against the yen since late 2008 after the Bank of Japan surprised the markets with an ambitious plan to fight deflation in a radical overhaul of policy.
Online currency bitcoin had 20 percent knocked off its price overnight on Thursday as one of its major exchanges became the victim of a hacking attack leading to a sell-off in the virtual currency after reaching an all-time high.
The dollar fell across the board on Wednesday after a report showed the US private sector created fewer jobs than expected last month, raising concerns that recovery has stalled.
The dollar rallied from one-month lows against the yen on Tuesday, benefiting from a rally in U.S. stocks and investor caution ahead of a Bank of Japan meeting this week.
Tom Levinson, foreign exchange strategist at ICAP, and Alan Higgins, chief investment officer at Coutts, tell CNBC why the euro has a negative outlook but the investor outlook is surprisingly positive.
The dollar fell to a nearly four-week low against the yen on Monday as softer-than-expected US manufacturing data suggested the economy may have run out of steam at the end of the first quarter.
The euro hovered near four-month lows against the dollar on Friday, beset by political deadlock in Italy and worries huge losses Cypriot depositors have been forced to stomach.