Asian stocks swung between gains and losses as reports from the U.S., China and Japan that showed slowing growth in the world’s biggest economies stoked speculation central banks will add to stimulus measures.

Nikkei 225 8,869.37 -2.28 -0.03%

S&P/ASX 200 4,333.8 +7.96 +0.18%

Shanghai Composite 2,128.31 +0.55 +0.03%

Rio Tinto Group, the world’s third-biggest mining company, rose 4.1 percent in Sydney as copper rose for a second day.

Zoomlion Heavy Industry Science & Technology Co., China’s No. 2 maker of construction equipment, jumped 6.4 percent in Hong Kong after Chinese President Hu Jintao urged Asian governments to speed up infrastructure development.