Prospects for these two sources of growth will not only influence the vigor, or lack thereof, of any recovery; they could well be decisive in bringing about an important shift in the US growth model. The 70/30 split underscores the challenge: the US must face up to a fundamental rebalancing – weaning itself from excessive reliance on internal demand and drawing greater support from external demand.
这两大增长源头的前景不仅会影响到复苏的前景，还很可能成为美国经济增长模式重大转变的决定因素。70/30的分割进一步凸显了挑战：美国必须直面一次根本性的调整——逐渐摆脱对国内需求的过度依赖，并向外部需求争取更多的支持。