NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

Alberto Russo

Dipartimento di Economia
Facolta' di Economia Giorgio Fua'
Universita' Politecnica delle Marche
Piazzale Martelli, 8
60121 Ancona

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NBER Working Papers and Publications

June 2008Financially Constrained Fluctuations in an Evolving Network Economy
with Domenico Delli Gatti, Mauro Gallegati, Bruce C. Greenwald, Joseph E. Stiglitz: w14112
We explore the properties of a credit network characterized by inside credit - i.e. credit relationships connecting downstream (D) and upstream (U) firms - and outside credit - i.e. credit relationships connecting firms and banks. The structure of the network changes over time due to the preferred-partner choice rule: each agent chooses the partner who charges the lowest price. The net worth of D firms turns out to be the driver of fluctuations. U production, in fact, is determined by demand of intermediate inputs on the part of D firms and production of the latter is financially constrained, i.e. determined by the availability of internal finance proxied by net worth. The output of simulations shows that at the macroeconomic level a business cycle can develop as a consequence of the compl...
 
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