According to Piketty, the tendency observed by Kuznets in the early 1950s is not necessarily a product of deep economic forces (e.g. sectoral spillover or the effects of technological progress).
根据皮凱提，库兹涅茨在1950年代早期发现的这一趋势不是深层次经济力量的必要产物(例如，部门外溢或技术进步的效应)。