Economic Capital Evaluation Using two Approaches of Structural Models: Taking Fluctuating Asset Correlations into Account Versus Classical Merton Model
Publish Year: 1402
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_IJFMA-8-30_013
تاریخ نمایه سازی: 29 فروردین 1402
Abstract:
The financial crisis has become one of the most important challenges for financial institutions. To overcome this challenge, financial institutions must have an accurate estimate of the risks involved and maintain adequate capital to protect the bank. In recent years, in the international community, economic capital, as the appropriate capital to cover unexpected loss, has become a more accurate criterion for estimating the required capital to deal with risks. In this paper, we estimate economic capital of a selected bank portfolio which includes publicly traded companies using Monte Carlo simulation with two approaches of structural models. The first approach is to use the random matrix method in order to take fluctuating asset correlations into account and the second one is the classical Merton method which does not take into account the fluctuations of correlations. The results show that the bank ‘s risk will be significantly underestimated if the classical Merton approach is used.
Keywords:
Merton model , Loss Distribution , Fluctuations of Covariance Matrix , economic capital , Monte-Carlo Simulations
Authors
zahra Eskandari
Ph.D. student in Financial Engineering, Department of Management, Central Tehran Branch, Islamic Azad university, Tehran, Iran
mirfeiz fallah shams
Department of Management, Central Tehran Branch, Islamic Azad University, Tehran, Iran
gholamreza Zomorodian
Department of Management, Central Tehran Branch, Islamic Azad University, Tehran, Iran
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