要提高经济的生产率，要么增加效率，要么把资源转移到生产率较高的新部门 — — 这一过程是否发生，可以通过观察出口多样化程度了解。
Economies become more productive either by doing what they do more efficiently, or by shifting resources into new sectors in which productivity is higher – a process that can be observed (or not) by looking at export diversification.