中文成人直播

报告题目：Broadband Internet Speed Upgrades and the Farmland Market: A Shift-Share Instrumental Variable Approach

报  告 人：陆岐楠 助理教授（中国人民大学）

主 持 人：王金霞 教授

报告时间：2025年4月30日 星期三 15:00-16:30

报告地点：北京大学王克桢楼508会议室

报告人简介

陆岐楠，2023年博士毕业于美国威斯康星大学麦迪逊分校农业与应用经济系，现为中国人民大学农业与农村发展中文成人直播 助理教授。主要研究领域为农业经济学，尤其关注工业化进程中农户生产决策的变化、农村环境与能源设施的变迁，以及二者对农业生产的影响。研究成果发表American Journal of Agricultural Economics (Forthcoming), Journal of Housing Economics, Food Policy, Agricultural Economics等期刊，另有工作论文在AEA, AAEA, AERE等举办的国际学术年会上做过汇报。主持国家自然科学基金青年科学基金项目1项，省部级项目2项。

报告内容

Access to reliable and affordable high-speed internet is critical for economic growth, and broadband internet access is of particular concern in rural America. As the United States continues to invest in this vital infrastructure, we provide the first empirical examination of the impact of broadband internet speed upgrades on farm-level sale prices and county-level cash rents in 12 Midwestern US states from 2016 to 2021. We employ a Bartik shift-share instrument with broadband technology shares to address the potential endogeneity in the deployment and upgrades of broadband internet. Our results indicate that a one megabit per second (Mbps) increase in download speed raises farmland sale prices by 0.268% and county-level cash rents by 0.070%. Additionally, a one percentage point increase in the download speed growth rate leads to a 0.041 percentage point increase in the growth rate of county-level cash rents. By decomposing the Bartik shift-share instrument, we demonstrate that the exogeneity of the initial market share of satellite technology contributes most to identification. Our research provides valuable insights for policymaking by quantifying the return on broadband investment and identifying areas and types of farms that benefit more from higher internet speed.