* FTSEurofirst 300 down 2 pct; hits 3-wk closing low
* Financial, mining stocks among top decliners
* Fed's economic outlook, China data hurt sentiment
By Atul Prakash
LONDON, Aug 11 (Reuters) - European shares slipped for a second straight session to a three-week closing low on Wednesday, with banking and commodity shares hit hard following the U.S. Federal Reserve's downbeat assessment of the economy.
Sentiment also worsened after figures showed that growth in Chinese investment and factory output slowed further last month, and the Bank of England said economic prospects were "highly uncertain" and it was ready to move policy in either direction.
Investors' appetite for risky assets fell. German government bonds rallied and pushed the 10-year yield to a record low, while the VDAX-NEW volatility index <.V1XI> hit five-week highs. The higher the index, the lower the market's desire for risk. The FTSEurofirst 300 <
> index of top European shares finished 2 percent down at 1,040.87 points, the lowest close since July 22 and the biggest one-day percentage fall since early July."These fears of a continued slowdown in China, along with the Fed's downbeat assessment of the U.S. economic outlook and similar statement from the Bank of England has seen the markets adopt a 'risk off' strategy," said Michael Hewson, analyst at CMC Markets.
Financial stocks were among the top losers, with the STOXX Europe 600 banking index <.SX7P> falling 3.4 percent. Standard Chartered <STAN.L>, Barclays <BARC.L>, Lloyds <LLOY.L> and Societe Generale <SOGN.PA> slipped 4.5 to 6.8 percent.
Macroeconomic numbers further dampened spirits. The U.S. trade deficit widened a surprising 18.8 percent in June on a surge of consumer goods from China and other suppliers, while U.S. exports fell. [
]"This profit taking could last a bit longer, but I don't think that we are in for a major correction for the equity market," said Klaus Wiener, head of research at Generali Investments.
"The Fed is willing to support the economy. If the economy slows but does not fall into recession as I expect, then market confidence in the economy could improve again."
Across Europe, Britain's FTSE 100 <
>, Germany's DAX < > and France's CAC40 < > declined 2.1 to 2.7 percent.
BEARISH TECHNICALS
The Euro STOXX 50 <
> index of blue chips in the euro zone fell 2.7 percent to 2,724.16 points. It moved further away from its 61.8 percent Fibonacci retracement level of a slide from a high in April to a low in May.The index finished below the 50-percent retracement of 2,738 and its 200-day moving average of 2,797, generally a bearish signal. It may find support at around 2,670 points where its 38.2 percent retracement and a 50-day moving average hover.
"I think we are going to back down again towards this year's lows," said Nicole Elliott, technical analyst at Mizuho Corporate Bank. Commodity shares also lost ground as crude <CLc1> fell 2.5 percent to trade below $79 a barrel after a report from the International Energy Agency warned of risks to demand. Key base metals fell 1.6 to 2.5 percent on worries about growth in the United States, the world's biggest economy.
Miner BHP Billiton <BLT.L>, Anglo American <AAL.L> and Rio Tinto <RIO.L> were down 3.3 to 4.7 percent, while energy company BP <BP.L>, Royal Dutch Shell <RDSa.L> and Tullow Oil <TLW.L> declined 2 to 2.9 percent.
Dutch food group CSM <CSMNc.AS>, which is facing higher raw material costs, fell 1.9 percent after the world's largest bakery supplies maker said it would raise its prices and cautiously forecast an increase in second-half operating profit.
Abertis <ABE.MC> fell 2.3 percent after ACS <ACS.MC> said it has struck a deal to sell a 1.7 billion euro ($2.24 billion) stake in toll road operator Abertis to private equity fund CVC, freeing up the Spanish builder to cut debt and pursue energy investments. [
] (Editing by Hans Peters)