Large-scale structure of a nation-wide production network
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Production in an economy is a set of firms’ activities as suppliers and customers; a firm buys goods from other firms, puts value added and sells products to others in a giant network of production. Empirical study is lacking despite the fact that the structure of the production network is important to understand and make models for many aspects of dynamics in economy. We study a nation-wide production network comprising a million firms and millions of supplier-customer links by using recent statistical methods developed in physics. We show in the empirical analysis scale-free degree distribution, disassortativity, correlation of degree to firm-size, and community structure having sectoral and regional modules. Since suppliers usually provide credit to their customers, who supply it to theirs in turn, each link is actually a creditor-debtor relationship. We also study chains of failures or bankruptcies that take place along those links in the network, and corresponding avalanche-size distribution.
KeywordsDegree Distribution Intermediate Good Production Network Degree Sequence Degree Correlation
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- 5.J.A. Scheinkman, M. Woodford, Ame. Econ. Rev. 84, 417 (1994) Google Scholar
- 7.P. Bak, How Nature Works (Springer-Verlag, 1996) Google Scholar
- 15.G. De Masi, Y. Fujiwara, M. Gallegati, B. Greenwald, J.E. Stiglitz, [q-fin.ST] Google Scholar
- 23.W.H. Press, S.A. Teukolsky, W.T. Vetterling, B.P. Flannery, Numerical Recipes in C: The Art of Scientificc Computing, 2nd edn. (University of Cambridge, 1992) Google Scholar
- 24.M.E.J. Newman, Random graphs as models of networks, Handbook of graphs and networks, edited by S. Bornholdt, H.G. Schuster (Wiley-VCH Weinheim, 2003), Chap. 2, pp. 35–68, Google Scholar
- 36.J. Makino, M. Taiji, Scientific Simulations with Special-Purpose Computers (John Wiley and Sons, Chichester, UK, 1998) Google Scholar
- 38.J. Stiglitz, B. Greenwald, Towards a New Paradigm in Monetary Economics (Cambridge University Press, 2003) Google Scholar
- 40.Á. Lublóy, M. Szenes, J. Stat. Mech. P12014 (2008) Google Scholar