An Empirical Analysis of Panel data of Agglomeration Economies in the Japanese Manufacturing Industries

本文以Ellison和Glaeser(1997)为基础，采用工厂级四位数分类、面板数据集和新的集聚指数，对1980-2000年间日本制造业的生产集聚经济的存在进行了检验。这是对区位商或区位基尼系数等传统指标的改进。当我们应用Kim(1992)提出的弹性超对数生产函数和成本分担方程时，我们发现，在基于就业的集聚(γ_&lt；EG&gt；)和基于附加值的集聚(γ_&lt；EG&gt；^V)的情况下，大约1.5%的正集聚效应不存在任何同质性限制。另一方面，我们利用城市两位数细分分类的面板数据、面板数据集、Henderson(2003)的集聚指数和Ellison and Glaeser(1997)的协聚指数，检验了1985-2000年日本工业生产的集聚和协聚效应的存在。利用基于Nakamura和Eshima(2004)的柯布-道格拉斯生产函数，我们发现日本产业存在正的集聚和协同集聚效应以及规模经济。

we examine the existence of agglomeration economies on production in the Japanese manufacturing industries from 1980 to 2000 using plant-level 4-digit sub classification, panel dataset and new agglomeration index in Tokunaga and Akune (2005), and Tokunaga, Kageyama, and Akune (2005), based on Ellison and Glaeser (1997). This is an improvement on the conventional indices such as Location Quotient or Location Gini Coefficient. When we apply a flexible translog production function and cost share equation as suggested by Kim (1992), we find that around 1.5% of positive agglomeration effect exists in absence of any restriction on homotheticity in the case of employment based agglomeration (γ_<EG>) and the case of value added based agglomeration (γ_<EG>^V). On the other hand, we examine the existence of agglomeration and co-agglomeration effect on production in the Japanese industry from 1985 to 2000 using panel data of city-level 2-digit sub classification, panel dataset, agglomeration index in Henderson (2003), and co-agglomeration index in Ellison and Glaeser (1997). Using the Cobb-Douglas production function based on Nakamura and Eshima (2004), we found that a positive agglomeration and co-agglomeration effect and scale economies in the Japanese industry.