by Krishna B. KumarDespite the strides made in recent decades, global poverty remains one of the most stubborn challenges of our times: Nearly half of the world's population lives on less than$ 5.50 a day....
They have also proven to be a powerful technique in the field of development studies....
Programs that are shown to be effective can be refined and scaled up....
综合
美国兰德公司-赛博战专栏
2019-10-23 00:00:00.0
