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1 引言孩子生活在学校、社会、家庭这一有机的整体中,这三者构成了有关孩子成长的“信息链”。困扰学生教育和孩子成长的一个重要问题就是在这个“信息链”中有关孩子的信息不对称。学校不知道孩子在社会、家庭是什么样,而家长又不了解孩子在社会、学校的情况如何。正如其他行业一样,信息不对称带来的是管理成本的增加,同样对于孩子来说,这种信息的不对称带来的
1 Introduction Children living in the organic whole of school, society and family constitute the “information chain” about the growth of children. An important issue plaguing student education and child development is the asymmetric information about children in this “information chain.” Schools do not know children in the community, what kind of family, and parents do not know children in society, the school’s situation. Just as in other industries, asymmetric information brings about an increase in the cost of management. Similarly, for children, the asymmetric information