Corn Ethanol and U.S. Biofuel Policy 10 Years Later: A Quantitative Assessment
通过元分析评估玉米乙醇对食品价格、燃料价格和温室气体的影响，发现其对温室气体排放影响小，对价格有中等影响，但显著提升美国燃料安全并改善贸易平衡。
Abstract We conduct meta‐analyses of the estimated impacts of corn ethanol on food and fuel prices, as well as greenhouse gases, and analyze the implications for the balance of trade. The meta‐analyses suggest that corn ethanol has minor effects on greenhouse gas emissions and significant yet moderate effects on food and fuel prices. However, corn ethanol has a relatively significant impact on fuel security in terms of reductions in the import of oil to the U.S. and its overall effect on the U.S. balance of trade.