* Gold drops below $800 and next targets $750
* Five of G7 economies are shrinking
* Weak currencies don't mean strong equities - HSBC
By Kevin Plumberg
HONG KONG, Aug 15 (Reuters) - The U.S. dollar rose to a six-month high against the euro on Friday as gold prices tumbled to a 2008 low and oil slipped, leading investors to increase bets on easing inflation and slower global growth.
The euro tumbled below $1.48 <EUR=> to the lowest since February, extending losses after data released on Thursday showed the euro zone economy shrank in the second quarter for the first time since records began being kept in 1995.
Five of the Group of Seven rich nations have experienced economic contraction this year, underscoring the dollar's relative attraction with growth still holding up in the world's largest economy and dragging crude prices back below $114 a barrel.
"A lot of investors who have been buying commodities, not just on a global growth story but as a hedge against a weak dollar, are unloading those commodities based on a much more constrained global outlook and going back into the U.S. dollar," said Tony Morriss, senior currency strategist with ANZ Bank in Sydney.
U.S. light crude futures edged below $114 a barrel, with investors feeling more confident that a ceasefire in hostilities between Russia and Georgia would hold. Since hitting an all-time high of $147.27 a month ago, oil has lost a fifth of its value as deep-seated worries about slowing demand from big consumers like China.
A 1.5 percent decline in gold prices to $793.95 an ounce <XAU=> in the spot market caused a landslide in other metals prices, with silver plunging 8.7 percent <XAG=>, on track for the largest daily decline since March.
"We'll have some people targeting $750, but I think we would need to see a continuation in that dollar strength to give it sufficient momentum to head that way," said Darren Heathcote of Investec Australia in Sydney.
WEAK CURRENCY=WEAK STOCKS?
Asian equity markets edged lower as sentiment continued to struggle as investors factored in to what extent potential recessions in Britain, Europe and Japan would hit corporate Asia's bottom line.
Japan's Nikkei share average edged up 0.4 percent <
> though it has remained in a relatively tight trading range for the last month. Shares of exporters with brands well-known overseas such as Canon Inc <7751.T> and Sony Corp <6758.T> were among the biggest boosts to the index, especially with the U.S. dollar showing sustained strength.However, currency weakness has not had good track record of foreshadowing stock market strength.
"History shows a strong and consistent correlation between weak currencies and falling stock markets," said Garry Evans, Asia-Pacific equity strategist with HSBC in Hong Kong.
"Weak currencies are a symptom of a deeper problem -- slowing economic growth, out-of-control inflation or structural issues -- that reduce the attractiveness of equities," he said in a research note.
Outside of Japan, stocks in the Asia-Pacific region slipped 0.3 percent, heading back toward a 17-month low plumbed on Wednesday, according to an MSCI index <.MIAPJ0000PUS>.
Hong Kong's Hang Seng index <
> was slightly lower, down 0.4 percent. Offshore oil producer CNOOC Ltd <0883.HK> was the biggest drag.The hallmark trade of the past year, betting on strength in raw materials prices because of solid growth in developing countries while selling off the unstable financial sector, has been seriously tested in recent weeks as the U.S. dollar showed sustained strength.
The currency and commodity component of that trade has clearly shown signs of unraveling. Corn and wheat futures traded on the Chicago Board of Trade fell sharply following the move higher in the dollar.
The euro was down 0.1 percent to $1.4778 <EUR=>, after having sunk to around $1.4750 earlier in the session.
The dollar was trading around 110.05 yen, up 0.3 percent and just below a seven-month high hit earlier in the week.
Weakness in the metals markets knocked the Australian dollar down 0.4 percent to US$0.8661 <AUD=>. Since mid July when many commodity prices began to turn lower, the Australian currency has dropped 12 percent.