我们的分析结论是这两股力量其实是在相互强化，并助推资本占国民收入比率的提升 — — 这也是皮凯蒂财富不均理论的一个关键变量。
Our analysis concludes that the two forces reinforce each other, and have helped to fuel the rise in capital’s share of national income – a key variable in Piketty’s theory of wealth inequality.