“中国到了一个新的发展阶段,这个发展阶段是和人口转变相关的。这和中等收入陷阱有很密切的逻辑关系,日本的实例就表明了这一点。”“提高劳动生产率有两个办法,提高资本劳动比或提高全要素生产率。” “China has reached a new stage of development that is related to demographic transition, which is closely related to the middle-income trap, as shown by the example of Japan.” “There are two ways to improve labor productivity: Ways to raise the capital-labor ratio or increase total factor productivity. ”