Hong Kong - A fall in the yen pushed Japan's stock market higher in early trade on Tuesday, helping it lead a broad Asia-wide advance, although analysts warned worries about the world economy and earnings would temper any rally.
World markets have been unable to maintain their momentum after the bright run seen in March, with concern growing that central banks may be running out of tools to kick-start growth and inflation.
Tokyo's Nikkei, which has been among the worst performers this year, enjoyed a rare rally Tuesday morning thanks to a dip in the yen, which supports exporters. By the break the index was up 1.2%.
The dollar rose to ¥108.20 in Japanese trade, from ¥107.94 in New York. However, the greenback is still down about five percent from the start of the month as a growing sense of worry sees traders shift into assets considered a safe bet.
Dealers are also awaiting the upcoming corporate earnings season with trepidation. Mitsuo Shimizu, an equity strategist at Japan Asia Securities Group, told Bloomberg News: "Once we get bad earnings results it's possible that we'll see more disappointment."
The gains in Tokyo were followed across most of the region, with Hong Kong up 0.2% up and Sydney 0.6% higher. Seoul, Singapore and Taipei were also slightly higher.
However, Shanghai was 0.6% lower after Monday's climb, which was fuelled by upbeat inflation data that raised hopes China's struggling economy may have turned a corner.
John Stoltzfus chief market strategist at Oppenheimer in New York, said there was little momentum to drive any meaningful rally.
"The market lacks enough conviction to move stocks in any one direction for any one amount of time long enough for investors to sink their teeth into and rack up performance," he said.
"There is an increased amount of scepticism and concern, mostly around earnings season. It boils down to a market that has to climb a wall of worry and has to earn its gains."
Regional energy firms edged higher after more gains in the price of oil on Monday, with expectations that a meeting of key producers on Sunday will see a deal to limit output.
Hong Kong-listed CNOOC was up 0.5% and PetroChina 1.2% higher while in Tokyo Inpex was up 2.5% and JX Holdings 1.5% higher. In Sydney, Rio Tinto and BHP Billiton each soared more than 2%.