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題名 城市的大小分佈、最適規模與效率
其他題名 The Size Distribution, Optimal Size and Efficiency of Cities
作者 陳心蘋
關鍵詞 Fractal;Diminishing returns;Increasing returns;Power law
日期 2002
上傳時間 18-Apr-2007 18:27:17 (UTC+8)
Publisher 臺北市:國立政治大學經濟學系
摘要 Many things in the natural world consist of an ever larger number of ever smaller pieces. It is called a fractal, which can be an object in space or a process in time. This fractal system has been observed in various fields, such as in the physical, biomedical, and social sciences. In economics the size distribution of cities and the distribution of the number of AOL users empirically fit the fractal. The purpose of this paper is to investigate the possible underlying mechanisms of the distribution of cities, which can generate not only the general power law rather than the specific Zipf`s law but also contain economic intuition. In the present paper we will introduce and simulate the proposed stochastic model to examine the feature that could generate power law which explains the regularity of the distribution of cities; furthermore, the extended features regarding the optimal scale and the efficiency prospect of the cities` distribution is also investigated. We find that the growth process with a diminishing returns` agglomeration economy or bounded an increasing returns` agglomeration economy converges to a stable limiting distribution with a constant expected proportion. On the contrary, the growth process with an unbounded increasing returns` agglomeration economy generates a fractal kind of limiting distribution with a time variant expected value. Given the assumption of agglomeration economies and robust evidence of Zipf`s in city distribution, our result suggests the presence of unbounded agglomeration economies in residents` location benefit.
描述 核定金額:435300元
資料類型 report
dc.coverage.temporal 計畫年度:91 起迄日期:20020801~20040131en_US
dc.creator (作者) 陳心蘋zh_TW
dc.date (日期) 2002en_US
dc.date.accessioned 18-Apr-2007 18:27:17 (UTC+8)en_US
dc.date.accessioned 9-Sep-2008 09:00:49 (UTC+8)-
dc.date.available 18-Apr-2007 18:27:17 (UTC+8)en_US
dc.date.available 9-Sep-2008 09:00:49 (UTC+8)-
dc.date.issued (上傳時間) 18-Apr-2007 18:27:17 (UTC+8)en_US
dc.identifier (Other Identifiers) 912415H004016.pdfen_US
dc.identifier.uri (URI) http://tair.lib.ntu.edu.tw:8000/123456789/5065en_US
dc.identifier.uri (URI) https://nccur.lib.nccu.edu.tw/handle/140.119/5065-
dc.description (描述) 核定金額:435300元en_US
dc.description.abstract (摘要) Many things in the natural world consist of an ever larger number of ever smaller pieces. It is called a fractal, which can be an object in space or a process in time. This fractal system has been observed in various fields, such as in the physical, biomedical, and social sciences. In economics the size distribution of cities and the distribution of the number of AOL users empirically fit the fractal. The purpose of this paper is to investigate the possible underlying mechanisms of the distribution of cities, which can generate not only the general power law rather than the specific Zipf`s law but also contain economic intuition. In the present paper we will introduce and simulate the proposed stochastic model to examine the feature that could generate power law which explains the regularity of the distribution of cities; furthermore, the extended features regarding the optimal scale and the efficiency prospect of the cities` distribution is also investigated. We find that the growth process with a diminishing returns` agglomeration economy or bounded an increasing returns` agglomeration economy converges to a stable limiting distribution with a constant expected proportion. On the contrary, the growth process with an unbounded increasing returns` agglomeration economy generates a fractal kind of limiting distribution with a time variant expected value. Given the assumption of agglomeration economies and robust evidence of Zipf`s in city distribution, our result suggests the presence of unbounded agglomeration economies in residents` location benefit.-
dc.format applicaiton/pdfen_US
dc.format.extent bytesen_US
dc.format.extent 135243 bytesen_US
dc.format.extent 135243 bytes-
dc.format.extent 21201 bytes-
dc.format.mimetype application/pdfen_US
dc.format.mimetype application/pdfen_US
dc.format.mimetype application/pdf-
dc.format.mimetype text/plain-
dc.language zh-TWen_US
dc.language.iso zh-TWen_US
dc.publisher (Publisher) 臺北市:國立政治大學經濟學系en_US
dc.rights (Rights) 行政院國家科學委員會en_US
dc.subject (關鍵詞) Fractal;Diminishing returns;Increasing returns;Power law-
dc.title (題名) 城市的大小分佈、最適規模與效率zh_TW
dc.title.alternative (其他題名) The Size Distribution, Optimal Size and Efficiency of Cities-
dc.type (資料類型) reporten