* MSCI world equity index down 1.2 percent at 317.39
* Investors dump stocks, European FX on growth fears
* Yen, government bonds benefit from safe-haven flows
By Natsuko Waki
LONDON, Sept 5 (Reuters) - A wave of risk aversion hit financial markets on Friday, pushing world stocks to their lowest in more than two years and knocking European currencies and oil as fears intensified about the global economic slowdown.
Safe-haven assets such as the yen and government bonds benefited after Wall Street had its steepest decline in more than two months as recent weak U.S. labour market data fanned nervousness about a closely-watched monthly jobs report later in the day.
Bank stocks took a hit after the European Central Bank tightened rules on the assets banks can submit as collateral in central bank lending operations following concern that its rules have been open to misuse.
Risk aversion also hit emerging markets -- which have already been under pressure in recent weeks on rising political and economic risk -- with benchmark emerging stocks hitting a 17-month low. "Global deleveraging remains the dominant theme in markets as the economic and financial sector news continues to disappoint," noted Mitul Kotecha, head of FX strategy at Calyon.
"The path of destruction that this deleveraging is causing was evident in the slide in U.S. equities and subsequent decline in Asian equity markets."
The FTSEurofirst 300 index <
> fell 1.2 percent, following even steeper moves in Asian stocks.The MSCI main world equity index <.MIWD00000PUS> dropped 1.2 percent, hitting its lowest since July 2006. The index has made six sessions of consecutive losses and already lost 5.6 percent since the start of the month.
U.S. stock futures <SPc1> were pointing to a lower day on Wall Street later. Data is expected to show that the U.S. economy lost 75,000 non-farm jobs in August.
European banking shares <.SX7P> fell 1.7 percent. The ECB is set to increase the safety margin it takes in valuing assets, known as the haircut, to 12 percent across the board for all asset-backed securities (ABS) which banks deposit with the ECB to receive short-term funding and access payment systems.
Analysts say the changes would make it less attractive for banks to use ABS as collateral and would push up the overall cost of borrowing funds from the central bank.
WAVE OF RISK AVERSION
European currencies extended their recent decline on concerns that economies outside the United States are deteriorating, especially in Europe -- which is facing recession.
Deepening such concerns, German industrial output fell by a bigger-than-expected 1.8 percent in July, dipping for the fourth time in five months.
The euro <EUR=> had fallen to a 11-month low below $1.42 while sterling hit a 12-year low on a trade-weighted basis <=GBP>.
The low-yielding yen surged to a 13-month high around 150.60 per euro <EURJPY=R> while it hit two-year lows against the Australian and New Zealand dollars.
The dollar <.DXY> rose 0.15 percent against a basket of major currencies. The index is up nearly 9 percent in the third quarter, on track for a biggest quarterly gain since the fourth quarter of 1992.
Emerging sovereign spreads <11EMJ> widened 6 basis points to trade 327 basis points above U.S. Treasuries. Emerging stocks <.MSCIEF> lost 2.4 percent.
The September Bund future <FGBLU8> rose 45 ticks, benefiting from flows into safe-haven government bonds.
Concerns that the slowing economy would hit energy demand weighed on U.S. light crude <CLc1>, which fell 1.4 percent to $106.40 a barrel. Gold <XAU=> ticked lower to $793.70 an ounce.
(Editing by Ron Askew)