Moody's has cut China's credit rating outlook to stable from positive, saying less-than anticipated progress in tackling economic risks.
Lower commodity prices and explosions at the Boston Marathon event dragged Wall Street to record lows.
Weak economic growth data from China and lower commodity prices have earlier dragged US stocks down to a five-month low.
Emerging economies such as China and Russia bucked general trend with rises in military spending.
Yen's weakness and growing investor sentiment in the country are cited as reasons for better industrial production data.
China's lower-than-expected first-quarter growth adds to investors' concerns about the global economy.
China attributes weak growth rate to global economic tensions and domestic controls such as property cooling measures.
China's GDP growth eases to 7.7 percent in the first quarter from 7.9 percent in the preceding quarter.
Cyprus bailout concerns contribute to the continued weakness of gold as precious metal dips below $1,400 for the first time since March 2011.
The facility will encourage the use of yen in trade settlement and investment in the euro area.
Most Asian markets add to their gains during the week supported by a strong start to the US earning season and Japan stimulus.
European markets retreat after four straight days of gains.
A 6.5 percent year-on-year decline in manufacturing output has dragged the economy into contraction.
The yen's retreat from a four-year low has pulled down the Nikkei stock average.
Markets open positive taking cues from a surprise jump in China's imports data.
China's March trade deficit widens on import surge indicating improved domestic demand.
China's March imports rise unexpectedly, leaving a surprise trade deficit for the country.
European markets open positive on indication of a solid US corporate earnings season.
China's CPI inflation slows down in March to 2.1 percent, below analysts' target of 2.5 percent.
Japanese stocks continue to gain from BoJ's stimulus that weakened the yen to the near-100 level against the dollar.
European Markets edge higher as investors remain optimistic on further stimulus hopes.
Most Asian markets decline as US employment data failed to meet investor expectations.
Asian stocks outside Japan retreat on weak economic data, Korean tensions and China bird flu fears.
Markets remain muted as investors await nonfarm payrolls data for further indications on US economic health.
The Nikkei tops 13,000 mark for first time since 2008 on BoJ's aggressive monetary policy decisions.
The producer price data gives an added reason for the ECB to consider a rate cut at its next meeting.
European markets pick up as investors await policy decision from European Central Bank and Bank of England.
BoJ unveils aggressive monetary policies in its latest meeting as expected by the market.
Asian markets weak after disappointing US economic data as investors await BoJ policy meet to conclude.
Anonymous political graffiti artist reported to have died from poisoning or suicide.