Alexander Stepanov :studied mathematics at Moscow State University from 1967 to 1972. He has been programming since 1972: first in the Soviet Union and, after emigrating in 1977, in the United States. He has programmed operating systems, programming

外出务工、汇款与居住地农民福利--基于消费结构视角，曹历娟，洪伟，非农就业对农民福利的影响备受关注，而作为其中的一种主要形式，外出务工对居住地农民福利的影响则表现出独特的影响机制。在提高