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Spatial Structure of Peer Networks and Academic Achievement Based on a Random Control Trial Experiment
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作者 shilan feng Ya Tan +1 位作者 Zhi Wang Qinghua Zhang 《China & World Economy》 2024年第3期67-97,共31页
This paper investigates whether changing the seating arrangement in a classroom can facilitate positive spillovers from top-performing students to others,using a field experiment conducted in a Chinese high school.Amo... This paper investigates whether changing the seating arrangement in a classroom can facilitate positive spillovers from top-performing students to others,using a field experiment conducted in a Chinese high school.Among study groups with balanced abilities,the treatment altered the spatial distribution by assigning the two top students to seats in the spatial center of each group.In the reference groups where students were allowed to choose their own seating arrangements,the lowest performing were significantly less likely to sit next to a top student than they would be under a random assignment.The results suggest that,in the treated groups,there could be enhanced academic spillovers from the top students.The treatment especially benefited the two lowest performing students in science subjects.In contrast,the treatment exerted negative effects on the test scores of the two middle-performing students,due to a disruption mechanism.The results suggest that the spatial layout of a peer network can have a significant impact on learning outcomes. 展开更多
关键词 field experiment peer effects social interactions spatial structure test scores
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同群压力还是同群激励?——高中合作小组的同群效应研究 被引量:9
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作者 谭娅 封世蓝 +1 位作者 张庆华 龚六堂 《经济学(季刊)》 CSSCI 北大核心 2021年第2期533-556,共24页
本文以高中班级中合作小组内部的同辈群体为研究对象,综合考虑了小组内部的座位安排和同群的心理特征,探究了小组内部在成绩上的同群效应。研究发现:在分级教学制度下,相比于以本科达线为目标的普通班,以培优为目标的重点班个体的同群... 本文以高中班级中合作小组内部的同辈群体为研究对象,综合考虑了小组内部的座位安排和同群的心理特征,探究了小组内部在成绩上的同群效应。研究发现:在分级教学制度下,相比于以本科达线为目标的普通班,以培优为目标的重点班个体的同群效应显著为负。这主要是由于重点班成绩下游学生受到显著负向的同群效应影响,而普通班成绩上游学生的同群效应为正。优秀的同群一方面可以产生正向激励,但在激烈竞争中可能转化成同群压力。 展开更多
关键词 同群效应 空间权重 分级教学
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中国最低工资调整与残疾人就业——基于县级邻近配对及个体追踪数据的经验证据与影响机制 被引量:3
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作者 张琼 封世蓝 曹晖 《经济学(季刊)》 CSSCI 北大核心 2022年第3期1061-1078,共18页
本文基于中国2007—2012年残疾个体追踪数据并考虑县级邻近配对,发现:(1)残疾人就业意愿因最低工资增加而下降,失业概率则因之上升;(2)2009年以后、东北地区、女性、青少年受最低工资影响更显著;(3)机制分析显示,最低工资上升,有工作个... 本文基于中国2007—2012年残疾个体追踪数据并考虑县级邻近配对,发现:(1)残疾人就业意愿因最低工资增加而下降,失业概率则因之上升;(2)2009年以后、东北地区、女性、青少年受最低工资影响更显著;(3)机制分析显示,最低工资上升,有工作个体继续有工作可能性下降而失业或退出劳动力市场概率上升,失业个体继续失业和退出劳动力市场概率上升而有工作概率下降,无就业意愿个体继续没有就业意愿或失业可能性上升而找到工作概率下降。 展开更多
关键词 最低工资 残疾人 就业
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Dynamics of occupational mobility:an empirical analysis based on headhunting data 被引量:1
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作者 shilan feng Ya Tan Liutang Gong 《Economic and Political Studies》 2017年第2期215-232,共18页
This paper analyses occupational mobility in the labour market using survey data from a headhunting company.Four aspects of occupational mobility are discussed:the frequency of occupational mobility,cross-industry mob... This paper analyses occupational mobility in the labour market using survey data from a headhunting company.Four aspects of occupational mobility are discussed:the frequency of occupational mobility,cross-industry mobility,cross-ownership mobility and the influence of the macro economy on occupational mobility.The following are our findings:(1)educational level may insignificantly or negatively influence occupational mobility;(2)the younger generation is more active in the labour market;(3)although the public sector provides stable job opportunities,labour mobility in the first five years is not lower in the public sector than in the private sector;and(4)Party members are more frequently occupationally mobile. 展开更多
关键词 Occupational mobility intergenerational difference cross-industry mobility cross-ownership mobility
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