Volume 23, Numbers 3 & 4 / September/December ,
The Valuation of Deposit Insurance Premiums Based on a Specific Bank’s Official Default Probability
Multinational Finance Journal, 2019, vol. 23, no. 3/4, pp. 141-167
Shu Ling Chiang , National Kaohsiung Normal University, Taiwan
Ming Shann Tsai , National University of Kaohsiung, Taiwan    Corresponding Author

Abstract:
This study presents a formula for valuating a deposit insurance (DI) premium based on a specific official default probability. This formula can be used to flexibly determine the DI premium that reflects changes in economic circumstances. We provide a new estimation method to determine the implied asset risk based on the efficient frontier between asset value and asset risk. Doing so avoids the problem for estimating a bank’s assets and asset risk using market equity data. Empirical evidence shows current DI premium assumes that banks have too high default rates. We suggest the DI premium should be lower for banks that fully obey the financial supervisory regulations. Doing so should incentivize these banks to decrease their likelihood of default by strictly implementing financial regulations, thus stabilizing financial environment. We also suggest a new dynamic method to help them determine reasonable DI premiums and maintain the target level of DIF reserves.

Keywords : deposit insurance; premium; default probability; financial supervision
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