報(bào)告題目：Broadband Internet Speed Upgrades and the Farmland Market: A Shift-Share Instrumental Variable Approach
報(bào) 告 人：陸岐楠 助理教授（中國(guó)人民大學(xué)）
主 持 人：王金霞 教授
報(bào)告時(shí)間：2025年4月30日 星期三 15:00-16:30
報(bào)告地點(diǎn)：北京大學(xué)王克楨樓508會(huì)議室
報(bào)告人簡(jiǎn)介
陸岐楠，2023年博士畢業(yè)于美國(guó)威斯康星大學(xué)麥迪遜分校農(nóng)業(yè)與應(yīng)用經(jīng)濟(jì)系，現(xiàn)為中國(guó)人民大學(xué)農(nóng)業(yè)與農(nóng)村發(fā)展學(xué)院助理教授。主要研究領(lǐng)域?yàn)檗r(nóng)業(yè)經(jīng)濟(jì)學(xué)，尤其關(guān)注工業(yè)化進(jìn)程中農(nóng)戶生產(chǎn)決策的變化、農(nóng)村環(huán)境與能源設(shè)施的變遷，以及二者對(duì)農(nóng)業(yè)生產(chǎn)的影響。研究成果發(fā)表American Journal of Agricultural Economics (Forthcoming), Journal of Housing Economics, Food Policy, Agricultural Economics等期刊，另有工作論文在AEA, AAEA, AERE等舉辦的國(guó)際學(xué)術(shù)年會(huì)上做過(guò)匯報(bào)。主持國(guó)家自然科學(xué)基金青年科學(xué)基金項(xiàng)目1項(xiàng)，省部級(jí)項(xiàng)目2項(xiàng)。
報(bào)告內(nèi)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.