世界银行：2024年生产寿命世界银行能做些什么来促进更长、更有成效的工作寿命在积极老龄化的世界中重新思考社会保护和就业报告（英文版）

The global population is aging and at an accelerating speed. By 2050, one in six people of the world’s population will be at least 65 years of age, resulting from rapidly declining fertility rates and increasing life expectancy. Nearly four out of five of these older people will be living in what are currently low- and middle-income countries (L/MICs) (United Nations, 2019). All else equal, more older people implies fewer workers, more dependents, and additional public and private expenditure