摘要
Introduction Ending poverty in all its forms everywhere is the first Sustainable Development Goal(SDG) of the United Nations(2021a). Progress towards this goal has varied but also been fruitful. Between 1990 and 2015, over a billion people were lifted out of extreme poverty(World Bank 2018). From 36% of the population under extreme poverty in 1990 to 10% in 2015(United Nations 2021b).
基金
the National Natural Science Foundation of China for its financial support(71661147001)。
