As Theodore W.Schultz said, the Nobel Prize winner and American economist Schultz once said, "Most people in the world are poor, so if we understand the economics of the poor, we will understand many really important economic principles." I sincerely hope that economists will not forget to leave a place for poverty when building their own theoretical buildings.
However, poverty, as a specific socio-economic phenomenon, has been concerned by people and brought into the field of theoretical research, and its history is not long. It was after the industrial revolution that poverty began to attract social attention and became one of the basic topics of economics. The real extensive concern and theoretical discussion on this issue began in 1950s and 1960s.