But the growth strategies that lift a poor country to middle-income levels cannot be counted upon to propel it to high-income status. Indeed, there is no shortage of countries whose leaders have failed to recognize their strategies’ constraints and provide enough incentives to encourage the emergence of a new one, causing their economies to stagnate and leaving them stuck in the so-called “middle-income trap.”
但让一个穷国步入中等收入行列的增长战略是无法继续执行同样的增长战略让这个国家实现高收入的。事实上，有许多国家，其领导人没有认识到增长战略的约束条件并给予足够的激励鼓励新战略，结果导致经济陷入停滞，受困于所谓的“中等收入陷阱”。