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Buyer-Supplier Networks and Aggregate Volatility
http://hdl.handle.net/2261/56127
http://hdl.handle.net/2261/56127c44ca440-65d4-45fd-8664-6ac65289e9d1
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
wp051.pdf (230.2 kB)
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| Item type | テクニカルレポート / Technical Report(1) | |||||
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| 公開日 | 2015-05-11 | |||||
| タイトル | ||||||
| タイトル | Buyer-Supplier Networks and Aggregate Volatility | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源 | http://purl.org/coar/resource_type/c_18gh | |||||
| タイプ | technical report | |||||
| 著者 |
Mizuno, Takayuki
× Mizuno, Takayuki× Souma, Wataru× Watanabe, Tsutomu |
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| 著者所属 | ||||||
| 著者所属 | National Institute of Informatics | |||||
| 著者所属 | ||||||
| 著者所属 | Department of Informatics, The Graduate University for Advanced Studies | |||||
| 著者所属 | ||||||
| 著者所属 | PRESTO, Japan Science and Technology Agency | |||||
| 著者所属 | ||||||
| 著者所属 | College of Science and Technology, Nihon University | |||||
| 著者所属 | ||||||
| 著者所属 | Graduate School of Economics, University of Tokyo | |||||
| 著者所属 | ||||||
| 著者所属 | The Canon Institute for Global Studies | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | In this paper, we investigate the structure and evolution of customer-supplier networks in Japan using a unique dataset that contains information on customer and supplier linkages for more than 500,000 incorporated non-financial firms for the five years from 2008 to 2012. We find, first, that the number of customer links is unequal across firms; the customer link distribution has a power-law tail with an exponent of unity (i.e., it follows Zipf’s law). We interpret this as implying that competition among firms to acquire new customers yields winners with a large number of customers, as well as losers with fewer customers. We also show that the shortest path length for any pair of firms is, on average, 4.3 links. Second, we find that link switching is relatively rare. Our estimates indicate that the survival rate per year for customer links is 92 percent and for supplier links 93 percent. Third and finally, we find that firm growth rates tend to be more highly correlated the closer two firms are to each other in a customer-supplier network (i.e., the smaller is the shortest path length for the two firms). This suggests that a non-negligible portion of fluctuations in firm growth stems from the propagation of microeconomic shocks – shocks affecting only a particular firm – through customer-supplier chains. | |||||
| 内容記述 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 2012～2016年度科学研究費補助金[基盤研究(S)]「長期デフレの解明」(研究代表者 東京大学経済学研究科・渡辺努, 課題番号：24223003) | |||||
| 書誌情報 |
JSPS Grants-in-Aid for Scientific Research (S) Understanding Persistent Deflation in Japan Working Paper Series 巻 051, 発行日 2014-11 |
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| 出版者 | ||||||
| 出版者 | UTokyo Price Project | |||||
| 関係URI | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | http://www.price.e.u-tokyo.ac.jp/researchdata/ | |||||
