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* Dollar gains as optimism on Geithner plan fades
* Sterling/dlr hits 6-week high on CPI data, King comments
* Euro pressured as policy-makers hint at euro rate cuts (Adds details on sterling, updates prices)
By Gertrude Chavez-Dreyfuss
NEW YORK, March 24 (Reuters) - The dollar rose on Tuesday as optimism about a U.S. government plan to remove bad assets from banks' balance sheets dwindled, prompting investors to resume safe-haven bets on the greenback.
The dollar also gained support from a growing view that the Federal Reserve's quantitative easing -- buying U.S. Treasury debt that would massively expand Uncle Sam's balance sheet -- would not undermine the currency as many initially thought.
Sterling, meanwhile, posted strong gains, hitting a six-week high against the dollar after UK inflation rose unexpectedly in February and Bank of England Governor Mervyn King said the central bank's quantitative easing program may be reduced if it is successful. See [
]."We're seeing a pullback in (U.S.) equities from yesterday's steep gains, and that has caused a pause in the selling of the dollar. So, this is the risk-aversion theme once again," said Ken Landon, a currency strategist at JPMorgan Chase in New York.
"The bloom has come off the euro, in particular, and its gains had been overextended anyway. When the Fed announced quantitative easing last week, people rushed to sell the dollar," Landon added.
In New York trade, the dollar was up 1.0 percent on the day at 97.99 yen <JPY=> but off the day's high of 98.56 yen, according to Reuters data.
The euro rose 0.1 percent to 132.40 yen <EURJPY=EBS>, having earlier struck 134.50 yen on trading platform EBS, its highest level since October.
The yen remained under pressure as continuing worries that the currency is overvalued, combined with concerns about Japan's weak economy, erode the unit's safe-haven status.
The euro fell 0.9 percent against the dollar to $1.3508 <EUR=EBS>, down from the two-and-a-half month peak of $1.3739 touched last week on EBS. The euro was almost midway between the session peak of $1.3678 and low of $1.3476, based on EBS data.
The euro was also under pressure as euro zone policy-makers suggested interest rates in the region could fall further, just as data showed manufacturing and services sector activity continued to contract significantly.
Among other currencies, sterling rose to $1.4778, the highest since Feb. 10. The pound last traded up 1.0 percent at $1.4710 <GBP=>
In Washington, U.S. Treasury Secretary Timothy Geithner and Federal Reserve Chairman Ben Bernanke testified before Congress about bailed-out insurer American International Group Inc and regulation. [
] But their appearance had muted impact on the currency market. (Additional reporting by Nick Olivari; Editing by Dan Grebler)