The Chinese economy is growing,but at a slower pace.Is this growth healthy and sustainable? The question was on the minds of many economists gathered in Dalian,capital of China's northeast Liaoning Province,for the World Economic Forum (WEF),September 14-16.The domestic economic landscape is anything but fiat.Inflation is easing,although still worryingly high.The United States has left open the possibility of a third round of quantitative easing,threatening to complicate inflation in China.Meanwhile,crisis-stricken exporters are regaining lost ground,but clouds are gathering over their prospects duc to uncertainties facing Western economies.The once-sizzling growth engine has showved signs of tapering off.As China twists harder on credit screws to tame stubborn inflation,worries abound that the country has gone too far in tightening its monetary policy and may suffer a sharper slowdown.