当前中国车牌政策下的机会不平等
综合经济学
2025-01-08 v2 经济学
摘要
衡量机会不平等一直是一个具有挑战性和开放性的问题,主要是由于与个人数据相关的限制。在本研究中,我们利用来自中国六大城市的车辆车牌数据(共17258辆车)来评估该国机会不平等。在我们所处的情境下,机会不平等被定义为较高价格的车辆更可能与具有“幸运数字”的车牌配对。为量化此指标,我们提出了基于幸运数字的机会基尼系数。通过计算机会基尼系数,我们观察到机会不平等与收入不平等之间存在显著且正相关。值得注意的是,我们发现技术的进步(以新能源车的广泛采用为例)可以显著降低机会不平等。将北京和上海在获取机动车之前采用随机抽签过程作为自然实验,我们的实证结果支持以下论点:就平等而言,采用随机抽签是分配稀缺资源的公平且平等的方法。
引用
@article{arxiv.2501.01298,
title = {Inequality of opportunity under current China's license plate policy},
author = {Nina Xiaochun Sun and Zaifang He and Yi Pang},
journal= {arXiv preprint arXiv:2501.01298},
year = {2025}
}
备注
Licence plate numbers in other major cities have not been covered (Guangzhou, Shenzhen), and hence new data still needs to be supplemented. Single GINI coefficient is insufficient to support conclusions in terms of inequality of opportunity, and we are still processing other methods. Therefore, this work is incomplete, and has been withdrawn by authors