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ABBA: An Agent-Based Model of the Banking System

Author

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  • Mr. Jorge A Chan-Lau

Abstract

A thorough analysis of risks in the banking system requires incorporating banks’ inherent heterogeneity and adaptive behavior in response to shocks and changes in business conditions and the regulatory environment. ABBA is an agent-based model for analyzing risks in the banking system in which banks’ business decisions drive the endogenous formation of interbank networks. ABBA allows for a rich menu of banks’ decisions, contingent on banks’ balance sheet and capital position, including dividend payment rules, credit expansion, and dynamic balance sheet adjustment via risk-weight optimization. The platform serves to illustrate the effect of changes on regulatory requirements on solvency, liquidity, and interconnectedness risk. It could also constitute a basic building block for further development of large, bottom-up agent-based macro-financial models.

Suggested Citation

  • Mr. Jorge A Chan-Lau, 2017. "ABBA: An Agent-Based Model of the Banking System," IMF Working Papers 2017/136, International Monetary Fund.
    • Handle: RePEc:imf:imfwpa:2017/136
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    Citations

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    Cited by:

    1. Toni Ricardo Eugenio dos Santos & Marcio Issao Nakane, 2021. "Dynamic bank runs: an agent-based approach," Journal of Economic Interaction and Coordination, Springer;Society for Economic Science with Heterogeneous Interacting Agents, vol. 16(3), pages 675-703, July.
    2. Alexey Ponomarenko & Andrey Sinyakov, 2017. "Impact of Banking Supervision Enhancement on Banking System Structure: Conclusions Delivered by Agent-Based Modelling," Bank of Russia Working Paper Series wps37, Bank of Russia.
    3. Giovanni Dosi & Andrea Roventini, 2019. "More is different ... and complex! the case for agent-based macroeconomics," Journal of Evolutionary Economics, Springer, vol. 29(1), pages 1-37, March.
    4. Aldo Glielmo & Marco Favorito & Debmallya Chanda & Domenico Delli Gatti, 2023. "Reinforcement Learning for Combining Search Methods in the Calibration of Economic ABMs," Papers 2302.11835, arXiv.org, revised Dec 2023.
    5. Alexey Ponomarenko & Andrey Sinyakov, 2018. "Impact of Banking Supervision Enhancement on Banking System Structure: Conclusions from Agent-Based Modeling," Russian Journal of Money and Finance, Bank of Russia, vol. 77(1), pages 26-50, March.
    6. Ștefan Ionescu & Nora Chiriță & Ionuț Nica & Camelia Delcea, 2023. "An Analysis of Residual Financial Contagion in Romania’s Banking Market for Mortgage Loans," Sustainability, MDPI, vol. 15(15), pages 1-32, August.
    7. Ramis Khabibullin & Alexey Ponomarenko & Sergei Seleznev, 2018. "Forecasting the implications of foreign exchange reserve accumulation with an agent-based model," Bank of Russia Working Paper Series wps37, Bank of Russia.

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