Dynamic default contagion in heterogeneous interbank systems

Z Feinstein, A Søjmark - SIAM Journal on Financial Mathematics, 2021 - SIAM
In this work we provide a simple setting that connects the structural modeling approach of
Gai--Kapadia interbank networks with the mean-field approach to default contagion. To …

Decentralized payment clearing using blockchain and optimal bidding

H Amini, M Bichuch, Z Feinstein - European Journal of Operational …, 2023 - Elsevier
In this paper, we construct a decentralized clearing mechanism which endogenously and
automatically provides a claims resolution procedure. This mechanism can be used to clear …

Price mediated contagion through capital ratio requirements with VWAP liquidation prices

T Banerjee, Z Feinstein - European Journal of Operational Research, 2021 - Elsevier
We develop a framework for price-mediated contagion in financial systems where banks are
forced to liquidate assets to satisfy a risk-weight based capital adequacy requirement. In …

Simulating fire sales in a system of banks and asset managers

S Calimani, G Hałaj, D Żochowski - Journal of Banking & Finance, 2022 - Elsevier
We develop an agent-based model of traditional banks and asset managers to investigate
the contagion risk related to fire sales and balance sheet interactions. We take a structural …

Capital regulation under price impacts and dynamic financial contagion

Z Feinstein - European Journal of Operational Research, 2020 - Elsevier
We construct a continuous time model for price-mediated contagion precipitated by a
common exogenous stress to the banking book of all firms in the financial system. In this …

Collateralized networks

S Ghamami, P Glasserman… - Management Science, 2022 - pubsonline.informs.org
This paper studies the spread of losses and defaults in financial networks with two
interrelated features: collateral requirements and alternative contract termination rules …

Clearing financial networks: Impact on equilibrium asset prices and seniority of claims

H Amini, A Minca - … the Boundaries: Frontiers in Impactful OR …, 2020 - pubsonline.informs.org
In financial derivative networks, clearinghouses have been mandated as de facto central
nodes: they are buyers to the sellers of financial contracts and resellers to the ultimate …

Price-mediated contagion with endogenous market liquidity

Z Cao, Z Feinstein - Mathematics and Financial Economics, 2024 - Springer
Price-mediated contagion occurs when a positive feedback loop develops following a drop
in asset prices which forces banks and other financial institutions to sell their holdings. Prior …

[HTML][HTML] Stabilizing financial networks via mergers and acquisitions

M Kallio, A Khabazian - European Journal of Operational Research, 2025 - Elsevier
A bi-level model is proposed to explore efficient policies for supporting negotiations on
financial crisis resolution. In a principal–agent framework, this model minimizes the welfare …

Preventing Price-Mediated Contagion Due to Fire Sales Externalities: Strategic Foundations of Macroprudential Regulation

Y Braouezec, K Kiani - Operations Research, 2024 - pubsonline.informs.org
We offer a stress test framework in which interaction between regulated banks occurs
through the impact they may have on asset prices when they deleverage. Because banks …