单心地铁的定量系统

J. Rappaport
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引用次数: 7

摘要

单中心城市框架被推广为包含一个地铁系统。一个“代表性”的封闭式地铁会校准参数,并建立一个必须与开放式地铁相匹配的保留效用和周边土地价格。假设开放式地铁的外生生产率低于或高于代表性地铁。对于给定的生产力水平,交通技术被证明是人口、土地面积、人口密度和地铁内外房价的最重要的定量决定因素。高速公路容量的变化主要影响这些数量,而通勤速度不变。开放的都市土地面积在相对生产力只有中等高的情况下接近最大值。开放的城市土地面积和人口下降到接近零,只有适度低的相对生产力。通勤时间长、需要工作固定时间的个人,其闲暇时间的边际价值远远高于他们的工资。该框架提供了大量关于偏好、生产技术和运输技术如何影响地铁内部和跨地铁的结果的定量见解。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A Quantitative System of Monocentric Metros
The monocentric city framework is generalized to comprise a system of metros. A "representative" closed metro calibrates parameters and establishes a reservation utility and perimeter land price that must be matched by open metros. The open metros are assumed to have exogenous productivity below and above that in the representative metro. For a given level of productivity, transportation technology proves to be the most important quantitative determinant of population, land area, population density, and house prices across and within metros. Changes in highway capacity primarily affect these quantities while leaving commute speeds unchanged. Open metro land area asymptotes to a maximum at only moderately high relative productivity. Open metro land area and population fall to near zero at only moderately low relative productivity. Individuals with long commutes who are required to work a fixed number of hours have a marginal value of leisure time that is far above their wage. The framework yields a number of quantitative insights into how preferences, production technologies, and transportation technologies shape outcomes within and across metros.
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