研究｜高宇宁等在Humanities & Social Sciences Communications刊文研究异质性主体区位选择|高宇宁_新浪财经

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近日，清华大学公共管理学院副院长、长聘副教授，清华大学国情研究院副研究员高宇宁等在Nature旗下期刊《人文与社会科学通讯（Humanities and Social Sciences Communications）》发表文章“基于个人特征的城市间劳动力流动选择的卢卡斯岛屿模型分析（A Lucas island model to analyse labour movement choice between cities based on personal characteristics）”。

劳动力流动是城市发展的关键因素，也造成了城市之间的不平等。虽然现有实证研究对此进行了探究，但却鲜有理论证据来揭示其深层机理。本文描述并推导了一个卢卡斯-普雷斯科特式的岛屿模型，利用内生技术增长来研究异质性主体的区位选择，并进而对个人人力资本增长的影响。该模型推导出了岛屿的技术导致的不平等程度呈现 U 型曲线主要发生于工资收入而非总收入。在扩展的双商品模型中，非贸易商品价格的影响增加了这一幅度。利用美国的人口普查数据进行实证检验，结果显示：一方面，财富禀赋较低的熟练劳动力由于高工资而倾向于居住在大城市；另一方面，技能较低但财富禀赋较高的人倾向于居住在环境较好的城市，这推高了这些城市非贸易品的价格水平。本研究有助于更好地理解人口向特大城市集中以及环境优美的城市房价工资比过高的原因，也为进一步实证研究其他城市劳动力流动提供了理论基础。

我们特将内容分享如下，以飨读者。

▋Humanities and Social Sciences Communications

volume 11, Article number: 1138 (2024)

https://doi.org/10.1057/s41599-024-03627-9

A Lucas island model to analyse labour movement choice between cities based on personal characteristics

基于个人特征的城市间劳动力流动选择的卢卡斯岛屿模型分析

Tiange Qi, Yuning Gao & Yongjian Huang

Tiange Qi：Department of Economics, University of Cambridge, Cambridge, UK

Yuning Gao: School of Public Policy and Management, Tsinghua University, Beijing, China

Yongjian Huang: School of Finance, Central University of Finance and Economics, Beijing, China

Abstract

The labour movement has been a key factor for cities’ development and caused regional inequality between cities. Although empirical studies have been conducted to investigate it, little theoretical evidence has been provided to find out the underlying mechanism. This paper describes and derives a Lucas-Prescott style island model to study the location choices of the heterogeneous agents by utilising endogenous technology growth, which in turn influences personal human capital growth. It leads to the U-shape curve of the inequality of wage income with the technology of these islands but not in terms of total income. In the extended two-goods model, the magnitude of the implications is increased by the impact of non-tradable goods price. Together with empirical research using the US census data, this paper finds that skilled labours with less endowed wealth tend to live in large cities for its high salary. On the other hand, those less-skilled but with more endowed wealth tend to live in cities with better environment, which drives up the price level of non-tradable goods in these cities. This explains the population concentration in the super cities and the high housing price-wage ratio in some beautiful cities, which provides theoretical basement for further empirical studies about labour movement in other cities.