问答题 In the past decade emerging markets have established themselves as the world"s fastest growing economy. Lately, though, the sprinters have started to slow down. Last week China reported its slowest growth in three years. India recently recorded its weakest performance since 2004. Only Russia was spared. Some investors darkly recall the developing world"s crisis-prone history and wonder whether the worst is yet to come. No crisis looms, but serious concern is justified, for the emerging world faces two distinct risks: a cyclical slowdown and a longer-tern erosion of potential growth. The first should be reasonably easy to deal with. The second will not.