Measurement of Establishments’ Locational Concentration with Regard to the Neighborhood Externality

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Other Title
  • 近隣外部効果を考慮した事業所の立地集積度の計測 : 八王子市を事例として
  • キンリン ガイブ コウカ オ コウリョ シタ ジギョウショ ノ リッチ シュウセキド ノ ケイソク : ハチオウジシ オ ジレイ ト シテ

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The intensity of concentration of enterprises and establishments has been measured by the density which is defined by their number over a designated unit of area like population density. We will propose a new measure which can account also for the concentration status of neighboring areas. We employed for this study the telephone directory database: “Yellow pages” provided by the NTT Business Information Service, Inc. We chose the Hachioji city (in Tokyo metropolitan area) as field of observation and the year 2011 as reference year. Firstly, we identified the establishments which are supposed to be in live status by carrying out some adjustments required for using this directory data and with due matching procedures. Secondly, we obtained longitudinal and latitudinal information for respective establishments by using geocoding procedures. Since several establishments often accommodate one and the same address in urban areas, many geographical points give manifold scores for their residence. By using the buffering method, we then re-scored the spots which will multiply the intensity of spots by taking into account the status of neighboring areas that fall in the designated scale of buffer. Finally, we mapped the areas by descending manner according to the calculated scores which are expected to delineate zones in terms of establishments’ concentration by also taking into account the intensity of concentration in the neighboring subareas.

Journal

  • 研究所報

    研究所報 44 1-17, 2014-02-15

    法政大学日本統計研究所

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