Financial Networks and Contagion
Preprint
- 1 January 2012
- preprint
- Published by Elsevier BV in SSRN Electronic Journal
Abstract
We model contagions and cascades of failures among organizations linked through a network of financial interdependencies. We identify how the network propagates discontinuous changes in asset values triggered by failures (e.g., bankruptcies, defaults, and other insolvencies) and use that to study the consequences of integration (each organization becoming more dependent on its counterparties) and diversification (each organization interacting with a larger number of counterparties). Integration and diversification have different, nonmonotonic effects on the extent of cascades. Initial increases in diversification connect the network which permits cascades to propagate further, but eventually, more diversification makes contagion between any pair of organizations less likely as they become less dependent on each other. Integration also faces tradeoffs: increased dependence on other organizations versus less sensitivity to own investments. Finally, we illustrate some aspects of the model with data on European debt cross-holdings.This publication has 32 references indexed in Scilit:
- Econometric measures of connectedness and systemic risk in the finance and insurance sectorsJournal of Financial Economics, 2012
- Asset commonality, debt maturity and systemic riskJournal of Financial Economics, 2012
- Financial Networks: Contagion, Commitment, and Private Sector BailoutsThe Journal of Finance, 2005
- Liquidity Risk and ContagionJournal of the European Economic Association, 2005
- Financial ContagionJournal of Political Economy, 2000
- Credit CyclesJournal of Political Economy, 1997
- Cross-Holdings: Estimation Issues, Biases, and DistortionsThe Review of Financial Studies, 1994
- Were Japanese stock prices too high?Journal of Financial Economics, 1991
- Risk capital financing and the separation of ownership and control in business groupsJournal of Banking & Finance, 1989
- Bank Runs, Deposit Insurance, and LiquidityJournal of Political Economy, 1983