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城市轨道交通基础设施与不平等

Urban Transit Infrastructure and Inequality
Review of Economics and Statistics · 2024 · Kwok Hao Lee、Brandon Joel Tan

中文摘要

我们提出一个包含异质性劳动者群体及其为消费非贸易品和服务而出行的定量空间模型。我们考察了新加坡市区线的开通,该线路将高收入家庭具有居住便利设施的地区,与非贸易部门生产率较高的地区连接起来。利用公共交通车资卡数据,我们发现高收入劳动者获得了大幅福利增益,而低收入劳动者获益甚微。虽然所有人都因消费机会的可及性改善而受益,但非贸易部门的低收入工作岗位却迁往了吸引力较低的工作地点。若不考虑消费出行,所估计的不同劳动者群体间的差异化影响将被低估三倍。

Abstract

Abstract We propose a quantitative spatial model featuring heterogeneous worker groups and their travel to consume nontradable goods and services. We consider the opening of the Downtown Line in Singapore, which connected regions where high-income households have residential amenities to where nontraded sectors are productive. Leveraging transit farecard data, we show that high-income workers saw large welfare gains but low-income workers gained little. Everyone enjoyed improved access to consumption opportunities, but low-income jobs in nontradables moved to less attractive workplaces. Abstracting from consumption travel understates the disparate impact across worker groups threefold.
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