论文标题
帽子还是没有帽子？政府可以做什么来促进电动汽车销售？
Cap or No Cap? What Can Governments Do to Promote EV Sales?
论文作者
论文摘要
本文研究了联邦电动汽车所得税补贴对电动汽车销售的影响。我发现减少联邦补贴导致销售下降了43.2美元\％$。为了达到此结果，我采用了能源部替代燃料数据中心的历史时间序列数据。利用该补贴仅适用于少于200,000累积电动汽车销售的公司，我将电动汽车模型分为两组。治疗组包括获得完整补贴的模型，对照组由获得减少补贴的模型组成。这允许在差异（DID）模型结构上有差异。为了检查结果的鲁棒性，我进行了回归分析。由于样本量相对较小，回归系数缺乏统计学意义。最重要的是，我的结果表明，旨在促进电动汽车消费的联邦激励措施在其目标方面取得了成功。
This paper examines the effect of the federal EV income tax subsidy on EV sales. I find that reduction of the federal subsidy caused sales to decline by $43.2 \%$. To arrive at this result, I employ historical time series data from the Department of Energy Alternative Fuels Data Center. Using the fact that the subsidy is available only for firms with fewer than 200,000 cumulative EV sales, I separate EV models into two groups. The treatment group consists of models receiving the full subsidy, and the control group consists of models receiving the reduced subsidy. This allows for a difference in differences (DiD) model structure. To examine the robustness of the results, I conduct regression analyses. Due to a relatively small sample size, the regression coefficients lack statistical significance. Above all, my results suggest that federal incentives designed to promote EV consumption are successful in their objectives.
