学术午餐会 第二十七期 郑淋议：减轻耕地细碎化遏制耕地撂荒的中国证据
学术午餐会（Brown Bag）指研究学者利用午餐时间进行学术演讲和交流，是欧美国家盛行的一种学术交流形式。Brown bag（棕色袋子）代表参与者自带或者主办方提供的午餐，由于美国午餐盒饭多半都装在棕色纸袋里而得名。
浙大卡特资源环境与农业发展研究团队(READ)联合浙江大学公共管理学院农业与农村发展智能计算实验室(ARDIC)，以“午餐会”的形式举办学术研讨会，期间会为报名参会的师生提供丰盛美味的“午餐”，旨在为师生提供轻松愉快的环境进行亲切、平等的对话，营造良好的校园学术氛围。
浙大卡特三农论坛第239期暨READ &ARDIC学术午餐会第27期具体信息如下：
本期主题
Reducing land fragmentation to curb cropland abandonment: Evidence from rural China
主讲嘉宾
郑淋议
浙江大学特聘副研究员
郑淋议，中共党员，重庆武隆人，管理学博士。2022年9月起任教于浙江大学公共管理学院农业经济与管理系，现为浙江大学特聘副研究员，主要研究方向为土地制度与土地经济学。近年来，在《经济学（季刊）》《Energy Economics》《Canadian Journal of Agricultural Economics》《Land Use Policy》等期刊发表论文多篇。目前担任《经济学（季刊）》《中国农村观察》《公共管理评论》《Energy Economics》《China Agricultural Economic Review》《Social Indicators Research》等多个国内外学术期刊审稿人。
内容提要
Reducing land fragmentation to curb cropland abandonment: Evidence from rural China
Reducing land fragmentation can theoretically curb cropland abandonment, thus ensuring food security. However, few studies have quantified this relationship using large-scale survey data at the household level. This study adopts a two-way fixed-effects (TWFE) model to examine the effect of land fragmentation on cropland abandonment using nationally representative panel data from the China Rural Household Panel Survey (CRHPS). The panel data set contains 15,138 households across 29 provinces in 2017 and 2019. We find that land fragmentation has a significant and positive relationship with cropland abandonment. The mechanism analysis reveals that this relationship is due to high labor costs and difficulties in renting out the fragmented land. The heterogeneity analysis indicates that farmers with poor human capital and those living in non-plain areas are at a higher risk of abandoning their cropland due to land fragmentation. Furthermore, the association between land fragmentation and cropland abandonment tends to vary across different land rent-in scenarios. For instance, an increase in the number of plots in the case of land rent-in is not necessarily associated with cropland abandonment. These findings are conducive to correcting the underestimation of the role of land fragmentation in cropland abandonment, and their implications may be extended to various countries.
主持人
史新杰，浙江大学中国农村发展研究院、公共管理学院百人计划研究员
活动时间
2023年6月21日（周三）11:30-13:30
活动地点
浙大紫金港校区西区创意楼A座 卡特729会议室(创意楼为下图红框内建筑，位于公共管理学院大楼西侧，可从创意楼东门或西门进入电梯厅抵达活动地点)
报名方式
扫描下方二维码填写个人信息。我们将为前20位报名且有用餐需求的师生提供午餐，为其他师生配备茶点水果。报名截止时间为2023年6月20日20:00，我们将以短信形式通知各位师生报名及用餐事宜，欢迎广大师生参与！
报名通道
READ团队简介