Imperial College London

ProfessorRamaCont

Faculty of Natural SciencesDepartment of Mathematics

Visiting Professor
 
 
 
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Contact

 

+44 (0)20 7594 0802r.cont Website

 
 
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Location

 

806Weeks BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Amini:2012:10.1142/S0219024911006504,
author = {Amini, H and Cont, R and Minca, A},
doi = {10.1142/S0219024911006504},
journal = {International Journal of theoretical and Applied Finance},
pages = {1250006--1250026},
title = {Stress testing the resilience of financial networks},
url = {http://dx.doi.org/10.1142/S0219024911006504},
volume = {15},
year = {2012}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - We propose a simulation-free framework for stress testing the resilience of a financial network to external shocks affecting balance sheets. Whereas previous studies of contagion effects in financial networks have relied on large scale simulations, our approach uses a simple analytical criterion for resilience to contagion, based on an asymptotic analysis of default cascades in heterogeneous networks. In particular, our methodology does not require to observe the whole network but focuses on the characteristics of the network which contribute to its resilience. Applying this framework to a sample network, we observe that the size of the default cascade generated by a macroeconomic shock across balance sheets may exhibit a sharp transition when the magnitude of the shock reaches a certain threshold: Beyond this threshold, contagion spreads to a large fraction of the financial system. An upper bound is given for the threshold in terms of the characteristics of the network.
AU - Amini,H
AU - Cont,R
AU - Minca,A
DO - 10.1142/S0219024911006504
EP - 1250026
PY - 2012///
SP - 1250006
TI - Stress testing the resilience of financial networks
T2 - International Journal of theoretical and Applied Finance
UR - http://dx.doi.org/10.1142/S0219024911006504
UR - http://www.worldscientific.com/doi/abs/10.1142/S0219024911006504
VL - 15
ER -