世界上的大多数人是贫穷的;因此,如果我们懂得了穷国的经济学,我们就大体上懂得了经济学的真缔。世界上的大多数穷人都靠农业为生;因此,如果我们懂得了农业经济学,我们就大体上懂得了穷国的经济学。在改善穷人的生活方面,决定性的生产因素不是国土的大小、能源和耕地,而是提高人 Most people in the world are poor; therefore, if we understand the economics of poor countries, we basically understand economics. Most of the world’s poor depend on agriculture for their livelihood; therefore, if we understand agricultural economics, we generally understand the economics of poor countries. In improving the lives of poor people, the decisive factor of production is not the size of land, energy and cultivated land, but the enhancement of people