主要原因是成为高收入国家需要一整套完善的现代制度体系来界定个体的权利和义务、促成市场交易和非市场互动，并通过一套公正的纠纷解决机制来实现法治。
A major reason is that reaching high-income status demands a strong network of modern institutions that define individuals’ rights and obligations, enable market exchange and non-market interactions, and enforce the rule of law by resolving disputes fairly.