Econ Papers Daily / 期刊论文
美国农业生产与温室气体排放的脱钩：增长与减排能否兼得？
Growing More While Emitting Less? Decoupling US Agricultural Production and Greenhouse Gas Emissions
摘要
We decompose state‐level US agricultural greenhouse gas emissions growth into output growth, input emission intensity, and total factor productivity (TFP). Combining EPA emissions data with USDA productivity accounts over 1990–2015, we find that TFP growth historically slowed emissions but has recently weakened. Declining input emission intensity, concentrated in the Southeast, has become the dominant mitigating factor. Further decomposition suggests that land productivity gains are more closely linked to emission reductions than labor productivity gains.
中文摘要
我们将美国州级农业温室气体排放增长分解为产出增长、投入排放强度与全要素生产率（TFP）。结合1990—2015年EPA排放数据与USDA生产率账户，我们发现，TFP增长历史上曾减缓排放，但近期这一效应已减弱。投入排放强度下降——主要集中在东南部——已成为主导的减缓因素。进一步分解表明，土地生产率提升与减排的联系比劳动生产率提升更为紧密。