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Japanese shares jumped on Thursday after the dollar vaulted to a six-year peak on the yen as the Federal Reserve's outlook for rising rates underlined the diverging path between the United states and the rest of the rich world.
In other regional share markets, the reception was mixed, with MSCI's index of ex-Japan Asian shares falling to 12-week lows, on the spectre of rising US rates and slower economic growth in China.
The euro skidded to a 14-month trough while gold hit an eight-month low as the dollar swept higher across the board, a move that many investors have been itching to wager on all year.
Indeed, the hawkish interpretation in currencies came despite the Fed maintaining language suggesting that rate hikes would not happen for a "considerable time."
The reaction also overshadowed a surprisingly soft reading on US inflation, even as Fed Chair Janet Yellen emphasised that policy would be highly dependent on how the economy actually performed in coming months.
"Overall, we feel that the forward guidance from the Fed is consistent with policy normalisation in 2015," said Dylan Eades, an economist at ANZ.
"Whilst the timing of the first rate rise is data dependent, we continue to expect that the FOMC will begin the normalisation process in March next year."
Futures markets still lean more towards a move in June. But whatever the timing, US rates do seem certain to be heading higher while central banks in the euro zone and Japan remain committed to super-easy monetary policy.
That stark contrast sent the euro sinking as far as $1.2834, depths last visited in July 2013. Measured against a basket of currencies, the dollar climbed to 84.753, the highest in 14 months.
The dollar also flew to 108.69 yen, its highest since September 2008 and up from 107.00 before the Fed statement.
A weaker yen is generally viewed as positive for Japanese exports and company earnings, helping lift the Nikkei 0.9% to its best since January.
The broad Topix index climbed 1% to tread ground not visited since July, 2008.
The yen's fall was timely as Reuters' latest poll of Japanese manufacturers showed confidence dropping by the most in two years in September as a tax increase hit the economy harder than expected.
SCOTTISH VOTE STILL TO COME
Elsewhere in Asia, the reaction in equities was more guarded as the prospect of rising US yields could attract funds away from emerging markets.
MSCI's broadest index of Asia-Pacific shares outside Japan fell 0.9%, having fallen nine sessions in the past 10 days.
Many emerging shares were bruised earlier this year by speculation of an sooner start to US rate hikes but analysts say their correction may soon come to an end.
"Even though the Fed will finish its bond buying, it is not going to raise rates any time soon. I doubt that emerging markets will enter a bear market," said Yukino Yamada, senior strategist at Daiwa Securities.
Indeed, Wall Street seemed to find some relief in the very fact that the Fed would not be hiking for a few months at least.
After whipsawing in a wide range, the Dow settled 0.15% higher, while the S&P 500 gained 0.13% and the Nasdaq 0.21%.
Bond investors reacted with more calm than those in currency markets, and nudged yields on the benchmark 10-year note up a modest 2 basis points to 2.62%.
Still, a rise in two-year yields to 0.57% widened their premium over German debt to 63 basis points, the fattest margin since early 2007.
With the Fed out of the way, the next big test for markets will be the referendum on Scotland's independence later Thursday.
The latest opinion poll by Survation showed support for staying in the United Kingdom is at 53%, giving sterling a mild lift. The pound was at $1.6264, having been as low as $1.6052 earlier in the month.
In commodities, the rise of the dollar was a dead weight on prices. Gold was down at $1,220.86 an ounce having touched an eight-month trough.
Oil prices were further pressured by a government report showing crude stocks rose sharply in the United States last week.
Brent crude and US crude were both down 0.5% on Thursday at $98.47 a barrel and $93.94 respectively.
