The Structure and Evolution of Buyer-Supplier Networks
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.
|Date of creation:||Jan 2014|
|Date of revision:|
|Contact details of provider:|| Postal: +81-42-580-8327|
Web page: http://www.ier.hit-u.ac.jp/ifn/
More information through EDIRC
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Francois Gourio & Leena Rudanko, 2011.
NBER Working Papers
17191, National Bureau of Economic Research, Inc.
- Daron Acemoglu & Vasco M. Carvalho & Asuman Ozdaglar & Alireza Tahbaz‐Salehi, 2012.
"The Network Origins of Aggregate Fluctuations,"
Econometric Society, vol. 80(5), pages 1977-2016, 09.
- Daron Acemoglu & Vasco Carvalho & Asuman Ozdaglar & Alireza Tahbaz-Salehi, 2011. "The network origins of aggregate fluctuations," Economics Working Papers 1291, Department of Economics and Business, Universitat Pompeu Fabra.
- Daron Acemoglu & Vasco M. Carvalho & Asuman E. Ozdaglar & Alireza Tahbaz-Salehi, 2012. "The Network Origins of Aggregate Fluctuations," Levine's Working Paper Archive 786969000000000359, David K. Levine.
- Daron Acemoglu & Vasco Carvalho & Asuman Ozdaglar & Alireza Tahbaz-Salehi, 2011. "The Network Origins of Aggregate Fluctuations," Working Papers 587, Barcelona Graduate School of Economics.
- Daron Acemoglu & Asuman Ozdaglar & Alireza Tahbaz-Salehi, 2015.
"Systemic Risk and Stability in Financial Networks,"
American Economic Review,
American Economic Association, vol. 105(2), pages 564-608, February.
- Vasco Carvalho, 2007.
"Aggregate fluctuations and the network structure of intersectoral trade,"
Economics Working Papers
1206, Department of Economics and Business, Universitat Pompeu Fabra, revised Oct 2010.
- Vasco M Carvalho, 2008. "Aggregate Fluctuations and the Network Structure of Intersectoral Trade," 2008 Meeting Papers 1062, Society for Economic Dynamics.
- Thomas Chaney, 2008. "Distorted Gravity: The Intensive and Extensive Margins of International Trade," American Economic Review, American Economic Association, vol. 98(4), pages 1707-21, September.
- Stijn Van Nieuwerburgh & Hanno Lustig & Bryan Kelly, 2014.
"Firm Volatility in Granular Networks,"
2014 Meeting Papers
253, Society for Economic Dynamics.
- Julian di Giovanni & Andrei A. Levchenko, 2008.
"Putting the Parts Together: Trade, Vertical Linkages, and Business Cycle Comovement,"
580, Research Seminar in International Economics, University of Michigan.
- Julian di Giovanni & Andrei A. Levchenko, 2010. "Putting the Parts Together: Trade, Vertical Linkages, and Business Cycle Comovement," American Economic Journal: Macroeconomics, American Economic Association, vol. 2(2), pages 95-124, April.
- Andrei A Levchenko & Julian Di Giovanni, 2009. "Putting the Parts Together; Trade, Vertical Linkages, and Business Cycle Comovement," IMF Working Papers 09/181, International Monetary Fund.
- Stella, Andrea, 2015.
"Firm Dynamics and the Origins of Aggregate Fluctuations,"
International Finance Discussion Papers
1133, Board of Governors of the Federal Reserve System (U.S.).
- Stella, Andrea, 2015. "Firm dynamics and the origins of aggregate fluctuations," Journal of Economic Dynamics and Control, Elsevier, vol. 55(C), pages 71-88.
- Battiston, Stefano & Delli Gatti, Domenico & Gallegati, Mauro & Greenwald, Bruce & Stiglitz, Joseph E., 2007. "Credit chains and bankruptcy propagation in production networks," Journal of Economic Dynamics and Control, Elsevier, vol. 31(6), pages 2061-2084, June.
- Saito, Yukiko Umeno & Watanabe, Tsutomu & Iwamura, Mitsuru, 2007.
"Do larger firms have more interfirm relationships?,"
Physica A: Statistical Mechanics and its Applications,
Elsevier, vol. 383(1), pages 158-163.
- SAITO (UMENO) Yukiko & WATANABE Tsutomu & IWAMURA Mitsuru, 2007. "Do Larger Firms Have More Interfirm Relationships?," Discussion papers 07028, Research Institute of Economy, Trade and Industry (RIETI).
- Y. Fujiwara & H. Aoyama, 2010. "Large-scale structure of a nation-wide production network," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 77(4), pages 565-580, October.
- Andrew T. Foerster & Pierre-Daniel G. Sarte & Mark W. Watson, 2011. "Sectoral versus Aggregate Shocks: A Structural Factor Analysis of Industrial Production," Journal of Political Economy, University of Chicago Press, vol. 119(1), pages 1 - 38.
- Daron Acemoglu & Asuman E. Ozdaglar & Alireza Tahbaz-Salehi, 2014.
"The Network Origins of Large Economic Downturns,"
Levine's Working Paper Archive
786969000000000944, David K. Levine.
When requesting a correction, please mention this item's handle: RePEc:hit:cinwps:27. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Digital Resources Section, Hitotsubashi University Library)
If references are entirely missing, you can add them using this form.