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
The policies resulting in urban-rural segmentation have not only directly impeded the transfer of labor from rural to urban areas,but also trapped the process of urbanization in a low-level equilibrium,as the negative...The policies resulting in urban-rural segmentation have not only directly impeded the transfer of labor from rural to urban areas,but also trapped the process of urbanization in a low-level equilibrium,as the negative effects are amplified by interdependencies between interpersonal decisions.This paper finds from the CHIPS2002 data that there is interdependence of rural residents' decision-making on labor migration from rural to urban areas,and the interdependence is strengthened by the exchange of information between rural residents.According to the simulation results of the models in this paper,China's rural-urban labor migration is indeed at a low-level equilibrium.To get rid of the low-level equilibrium,in addition to improving the level of education and promotion of information exchange among rural residents,it is more important to implement "big push " policies to eliminate institutional barriers to labor mobility and accelerate urbanization with the social interaction.展开更多
基金support from the National Natural Science Foundation of China(Nos.72203039,72273004,and 72003036)the National Social Science Foundation of China(No.20CJL030)support from the Key Laboratory of Mathematical Economics and Quantitative Finance,Ministry of Education and Peking University,China(RCT ID:AEARCTR-0007880).
文摘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.
基金Fund support from the National Social Science Funds(12AZD045,13&ZD015)Natural Science Foundation(71133004)is acknowledged
文摘The policies resulting in urban-rural segmentation have not only directly impeded the transfer of labor from rural to urban areas,but also trapped the process of urbanization in a low-level equilibrium,as the negative effects are amplified by interdependencies between interpersonal decisions.This paper finds from the CHIPS2002 data that there is interdependence of rural residents' decision-making on labor migration from rural to urban areas,and the interdependence is strengthened by the exchange of information between rural residents.According to the simulation results of the models in this paper,China's rural-urban labor migration is indeed at a low-level equilibrium.To get rid of the low-level equilibrium,in addition to improving the level of education and promotion of information exchange among rural residents,it is more important to implement "big push " policies to eliminate institutional barriers to labor mobility and accelerate urbanization with the social interaction.
