The network origins of aggregate fluctuations
AbstractThis paper argues that in the presence of intersectoral input-output linkages, microeconomic idiosyncratic shocks may lead to aggregate fluctuations. In particular, it shows that, as the economy becomes more disaggregated, the rate at which aggregate volatility decays is determined by the structure of the network capturing such linkages. Our main results provide a characterization of this relationship in terms of the importance of different sectors as suppliers to their immediate customers as well as their role as indirect suppliers to chains of downstream sectors. Such higher-order interconnections capture the possibility of "cascade effects" whereby productivity shocks to a sector propagate not only to its immediate downstream customers, but also indirectly to the rest of the economy. Our results highlight that sizable aggregate volatility is obtained from sectoral idiosyncratic shocks only if there exists significant asymmetry in the roles that sectors play as suppliers to others, and that the "sparseness" of the input-output matrix is unrelated to the nature of aggregate fluctuations.
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Bibliographic InfoPaper provided by Department of Economics and Business, Universitat Pompeu Fabra in its series Economics Working Papers with number 1291.
Date of creation: Oct 2011
Date of revision:
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Web page: http://www.econ.upf.edu/
Business cycle; aggregate volatility; diversification; input-output linkages; intersectoral network; cascades;
Other versions of this item:
- 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 & 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.
- C67 - Mathematical and Quantitative Methods - - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling - - - Input-Output Models
- D57 - Microeconomics - - General Equilibrium and Disequilibrium - - - Input-Output Tables and Analysis
- E32 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Business Fluctuations; Cycles
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- Antonio Ciccone, 2002.
"Input Chains and Industrialization,"
Review of Economic Studies,
Oxford University Press, vol. 69(3), pages 565-587.
- Coralio Ballester & Antoni Calvo-Armengol & Yves Zenou, 2005.
"Who's Who in Networks. Wanted: the Key Player,"
NajEcon Working Paper Reviews
- Ballester, Coralio & Calvó-Armengol, Antoni & Zenou, Yves, 2005. "Who’s Who in Networks. Wanted: The Key Player," CEPR Discussion Papers 5329, C.E.P.R. Discussion Papers.
- Coralio Ballester & Antoni Calvó-Armengol & Yves Zenou, 2004. "Who's Who in Networks. Wanted: The Key Player," Working Papers 178, Barcelona Graduate School of Economics.
- Xavier Gabaix, 2011.
"The Granular Origins of Aggregate Fluctuations,"
Econometric Society, vol. 79(3), pages 733-772, 05.
- Xavier Gabaix & Rustam Ibragimov, 2007. "Rank-1/2: A Simple Way to Improve the OLS Estimation of Tail Exponents," NBER Technical Working Papers 0342, National Bureau of Economic Research, Inc.
- Vasco Carvalho & Xavier Gabaix, 2010.
"The great diversification and its undoing,"
Economics Working Papers
1208, Department of Economics and Business, Universitat Pompeu Fabra, revised Oct 2010.
- Xavier Gabaix & Vasco M. Carvalho, 2010. "The Great Diversification and its Undoing," 2010 Meeting Papers 880, Society for Economic Dynamics.
- Vasco M. Carvalho & Xavier Gabaix, 2010. "The Great Diversification and its Undoing," NBER Working Papers 16424, National Bureau of Economic Research, Inc.
- Carvalho, Vasco M & Gabaix, Xavier, 2010. "The Great Diversification and its Undoing," CEPR Discussion Papers 8044, C.E.P.R. Discussion Papers.
- 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.
- Xavier Gabaix & Rustam Ibragimov, 2006. "Log(Rank-1/2): A Simple Way to Improve the OLS Estimation of Tail Exponents," Harvard Institute of Economic Research Working Papers 2106, Harvard - Institute of Economic Research.
- Vasco M Carvalho, 2008.
"Aggregate Fluctuations and the Network Structure of Intersectoral Trade,"
2008 Meeting Papers
1062, Society for Economic Dynamics.
- 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.
- Daron Acemoglu & Asuman Ozdaglar & Alireza Tahbaz-Salehi, 2010. "Cascades in Networks and Aggregate Volatility," NBER Working Papers 16516, National Bureau of Economic Research, Inc.
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