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A multi-asset, agent-based approach applied to DeFi lending protocol modelling

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  • Amit Chaudhary
  • Daniele Pinna

Abstract

We assess the market risk of the DeFi lending protocols using a multi-asset agent-based model to simulate ensembles of users subject to price-driven liquidation risk. Our multi-asset methodology shows that the protocol's systemic risk is small under stress and that enough collateral is always present to underwrite active loans. Our simulations use a wide variety of historical data to model market volatility and run the agent-based simulation to show that even if all the assets like ETH, BTC and MATIC increase their hourly volatility by more than ten times, the protocol carries less than 0.1\% default risk given suggested protocol parameter values for liquidation loan-to-value ratio and liquidation incentives.

Suggested Citation

  • Amit Chaudhary & Daniele Pinna, 2022. "A multi-asset, agent-based approach applied to DeFi lending protocol modelling," Papers 2211.08870, arXiv.org, revised Dec 2022.
    • Handle: RePEc:arx:papers:2211.08870
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    References listed on IDEAS

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    1. Alexander Schied & Torsten Schöneborn, 2009. "Risk aversion and the dynamics of optimal liquidation strategies in illiquid markets," Finance and Stochastics, Springer, vol. 13(2), pages 181-204, April.
    2. Makarov, Igor & Schoar, Antoinette, 2020. "Trading and arbitrage in cryptocurrency markets," LSE Research Online Documents on Economics 100409, London School of Economics and Political Science, LSE Library.
    3. Makarov, Igor & Schoar, Antoinette, 2020. "Trading and arbitrage in cryptocurrency markets," Journal of Financial Economics, Elsevier, vol. 135(2), pages 293-319.
    4. Satyajit Chatterjee & Burcu Eyigungor, 2015. "A Quantitative Analysis of the US Housing and Mortgage Markets and the Foreclosure Crisis," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 18(2), pages 165-184, April.
    5. Bence Toth & Yves Lemperiere & Cyril Deremble & Joachim de Lataillade & Julien Kockelkoren & Jean-Philippe Bouchaud, 2011. "Anomalous price impact and the critical nature of liquidity in financial markets," Papers 1105.1694, arXiv.org, revised Nov 2011.
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    Cited by:

    1. Jakub Warmuz & Amit Chaudhary & Daniele Pinna, 2022. "Toxic Liquidation Spirals," Papers 2212.07306, arXiv.org, revised Jan 2023.

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