Free flow of resources;free mobility of resources资源自由流动农民工作为我国庞大却弱势的特殊社会群体，是经济社会结构变迁后劳动力资源自由流动优化配置的必然结果。Migrant workers is a very large social vulnerable group in China, It is an inevitable requirement of labor resources allocation after economic and social structurechanges.
心晴joanny
