* Investors unwind bets against dollar, take shine off gold
* Russia tensions ease, weakening support for oil
* Asia stocks bounce from 2-year low (Updates prices, adds quote)
By Kevin Plumberg
HONG KONG, Aug 25 (Reuters) - The U.S. dollar rose broadly on Monday, hitting a two-year high against sterling, as a downtrend in oil and gold prices left investors scurrying to buy back the currency, sparking a rebound in Asian stocks.
Recent reports showing shrinking or no economic growth in Britain, the euro zone and Japan have boosted the attraction of the dollar as an alternative investment, especially with crude prices trading just above $114 barrel, $33 below a record high hit in July.
A rally in the dollar stalled last week after hitting a six-month high against the euro, but an upward trend in the U.S. currency is seen intact.
Even billionaire investor and long-time dollar detractor Warren Buffett, chairman of conglomerate Berkshire Hathaway Inc <BRKa.N>, came to the currency's aid on Friday when he said in a television interview that he had no bets against the dollar.
"The combination of incremental weakness in the European economy and the lower oil prices should keep the pressure on euro/dollar in our view," Nizram Idris, currency strategist with UBS in Singapore, said in a note.
Asian stocks rebounded from a two-year low as the drop in oil prices lifted shares of companies sensitive to energy prices, though trading volumes across the region were quite thin, suggesting a lack of conviction among investors.
Japan's Nikkei share average <
> jumped about 1.9 percent, with shares of Honda Motor Co <7267.T> leading the way higher.The MSCI pan-Asia stocks index <.MIAS00000PUS> was up 1.6 percent, after hitting the lowest since July 2006 on Friday. The MSCI Asia-Pacific ex-Japan index <.MIAJP00000PUS> rose 1.2 percent. Australia's benchmark share index <
> was also up 2 percent, helped by rallying shares of the country's top banks.Hong Kong's Hang Seng index <
> led the region, up 3 percent after plumbing a one-year low on Friday. Shares of offshore Chinese oil producer CNOOC <0883.HK> were up 3.7 percent and among the biggest boosts to the index, with the company expected to report solid first-half results on Wednesday.RISK PROFILE
The euro <EUR=> fell 0.4 percent to $1.4722, about a cent away from last week's low.
The British pound had fallen as low as $1.8415 <GBP=>, its lowest since July 2006, down 0.5 percent. Sterling was hurt by data on Friday that showed UK gross domestic product was unchanged in the second quarter compared with an initial estimate of 0.2 percent growth -- bolstering the case for lower interest rates to spur activity.
Oil was largely steady, after suffering the biggest daily decline since 2004 on Friday, on Russia's pledge to withdraw the bulk of its troops from Georgia and the uneventful passing of Tropical Storm Fay near the Gulf of Mexico.
"The easing of Tropical Storm Fay and the pullout of Russian troops from Georgia has taken some risk premium out of the market," said Toby Hassall, chief analyst at Commodity Warrants Australia in Sydney.
"But there will be some degree of geopolitical tensions as long as Russia still has troops stationed in Georgia."
U.S. light crude for October delivery <CLc1> was essentially unchanged at $114.58 a barrel.
Crude's large drop so far, however, has not been enough to entice fund managers to take on more risk for higher returns. Some instruments used to measure risk have been reflecting relatively low market volatility, and equity valuations have become attractive.
Hopes of a saviour for beleaguered Lehman Brothers Holdings Inc <LEH.N> pushed up shares in the investment bank on Friday after the state-run Korea Development Bank said on Friday buying Lehman is an option.
Still, regional risk measures show investors frozen in cautious mode rather than ready to dive back into markets in search of bargains. The iTRAXX Asia ex-Japan index of high-yield credit default swaps <ITAHY5UA=GFI> has been stable in the last month, between 515 and 560 basis points.
That range is smack in the middle of a record high hit in March amidst the meltdown of Bear Stearns and a low in May when stock markets recovered. Credit default swaps are insurance-like contracts that protect against defaults and restructuring.
"Even with oil prices down, the global liquidity crunch remains very much with us," said Clive McDonnell, regional strategist with BNP Paribas in Hong Kong.
"U.S. and European portfolio managers continue to reduce risk in their portfolios; emerging markets are the higher risk asset class, hence we are suffering disproportionately," he said.
Gold eased 0.4 percent to around $819.15 an ounce <XAU=> in the spot market, having shed more than $150 in the last month as oil prices fell and the dollar strengthened.