Determining Factors Affecting Optimal Risk Level, Optimal Capital Structure and Efficiency in Iranian Banks (Delphi-Fuzzy Approach)

Subject Areas : Financial Economics

میرحمید سادات سلماسی ¹ (گروه حسابداری، واحد بابل، دانشگاه آزاد اسلامی، بابل، ایران)
ایمان داداشی ² (گروه حسابداری، واحد بابل، دانشگاه آزاد اسلامی، بابل، ایران.)
حمیدرضا غلام نیاروشن ³ (گروه حسابداری, دانشکده علوم انسانی, دانشگاه آزاد اسلامی واحد بابل)

Received: 2021-09-30 Accepted : 2021-12-02 Published : 2021-12-22

Keywords: G24, JEL Classification: G21,

Abstract :

Banking capital and risk decisions are affected by laws, private incentives and capital market pressure. Focusing on examining these cases will explicitly provide an updated insight into empirical evidence on the impact of auditors 'regulations on capital and risk, and provide an assessment of the evolution of banks' decision making mechanisms. Therefore, this research has determined the factors affecting the optimal level of risk and optimal capital structure in Iranian banks using Delphi-Fuzzy approach based on in-depth interview with experts and content analysis. After identifying the effective factors using content analysis and content analysis, 15 experts were interviewed. The Delphi-Fuzzy approach was used to determine the effect of the final factors. The results show that the most important factors affecting efficiency are physical capital cost, manpower cost, cost of funds, investment in securities and net facility. In addition, among the various factors, the variables of facility coverage rate, risk capacity and legal requirement will be the most important factors affecting the optimal level of risk in banks. Finally, minimum capital, minimum capital risk and minimum leverage ratio were considered as the most effective factors in determining optimal capital structure.

References:

احمدزاده، موسی، نوری، روح اله، اسفیدانی، محمدرحیم و اکبری، محسن (1384). بررسی ساختار سرمایه و منابع مالی بانک کشاورزی و ارائه راه کارهای مناسب جهت بهینه کردن آن، بررسی های حسابداری و حسابرسی، 12 (39)، 3-29.
علم الهدی، سیدسجاد (1397). بانکداری اسلامی و ریسک، یک تحلیل تطبیقی، فصلنامه اقتصاد مالی، 12 (44)، 69-86.
عمرانی، میثم و ناجی عظیمی (1395). مدل سازی مدیریت دارایی ها و بدهی ها با رویکرد مدیریت ریسک نقدینگی در نظام بانکداری با استفاده از مدل برنامه ریزی آرمانی فازی (FGP)؛ مطالعه موردی : بانک ملت، تحقیقات مدل سازی اقتصادی، 25.
عینی، آرش (1397). مدیریت بهینه ریسک اعتباری، فصلنامه علمی- ترویجی اقتصاد و بانکداری اسلامی، 25، 67-96.
فرزاد مهر، لیلا و خدائی وله زاقرد، محمد (1395). رفتار ریسک پذیری بانک ها در صنعت بانکداری ایران، کنگره بین المللی توانمندسازی جامعه در حوزه مدیریت، اقتصاد،کارآفرینی و مهندسی فرهنگی، تهران، مرکز توانمندسازی مهارتهای فرهنگی و اجتماعی جامعه.
قاسمی، عبدالرسول، بهرامی، جاوید و شعبانی جفرودی، ثریا (1397). پیش بینی شکاف دارایی- بدهی پویا در صنعت بانکداری ایران کاربرد الگوی عصبی- فازی تطبیقی و الگوی حافظه بلندمدت (مطالعه موردی: یک بانک خصوصی)، فصلنامه اقتصاد مالی، 12 (45)، 93-126.
محقق نیا، محمدجواد، دهقان دهنوی، محمدعلی و بائی، محیا (1398). تاثیر عوامل درونی و بیرونی صنعت بانکداری بر ریسک اعتباری بانک‌ها در ایران، فصلنامه اقتصاد مالی، 13 (46)، 127-144.
Aggarwal, R. and K. Jacques (2001): A simultaneous equation estimation of the impact of prompt corrective action on bank capital and risk. Paper presented at the Conference on the Future of Capital in New York, February 1998. 
Ahmad, R, Ariff, M and Skully, MJ. 2009: Determinants of bank capital ratios in a developing economy. Asia-Pacific Financial Markets 15(3–4): 255–272. 
Banker, R.D., Chang, H., Lee, S. (2018) Differential impact of Korean banking system reforms on bank productivity. Journal of Banking & Finance 34(7): 1450–1460.
Berger, A.N., Bouwman, C., Kick, T., Schaeck, K. (2014) Bank risk taking and liquidity creation following regulatory interventions and capital support. Working paper, University of South Carolina.
Bouri, A. and Ben Hmida, A. 2006: Capital and risk taking of banks under regulation: A simultaneous equations approach in the Tunisian context. Proposition pour le Sixième Congrès Intrenational de l’AFFI: «Finance d’enterprise et finance de marchè: quelles complèmentarités?» 
Camara, B., Lepetit, L., Tarazi, A., 2013. Ex ante capital position, changes in the different components of regulatory capital and bank risk. Appl. Econ. 45, 4831---4856.
Charnes, A., Cooper, W.W., Rhodes, E., 1979. Measuring the efficiency of decision-making units. Eur. J. Oper. Res. 3, 339.
Chortareasa, G.E., Girardoneb, C., Ventouric, A. (2019) Bank supervision, regulation, and efficiency: Evidence from the European Union. Journal of Financial Stability 8(4): 292–302.
De Young, R., 1997. Measuring bank cost efficiency: don’t count on accounting. Financ. Pract. Educ. 7, 20---31.
Ding, D., & Sickles, R. C. (2018). Frontier efficiency, capital structure, and portfolio risk: An empirical analysis of US banks. BRQ Business Research Quarterly, 21(4), 262-277.
Dullien, S., Kotte, D.J., Márquez, A., Priewe, J. (2010) The financial and economic crisis of 2008- 2009 and developing countries. United Nations Conference on Trade and Development. University of Applied Sciences, Berlin
Eubanks, W.W. (2010) The European Union’s Response to the 2007-2009 Financial Crisis. Congressional Research Service. Report for Congress, 7-5700.
Farel, M. J. (1957). The Measurement of Productive Efficiency.
Hughes, J.P., Lang, W., Mester, L.J., Moon, C.-G., et al., 1995. Recovering technologies that account for generalized managerial preferences: an application to non-risk-neutral banks. Technical Report Wharton School Center for Financial Institutions. University of Pennsylvania.
Hussain, ME and Hassan, MK. 2005: Basel capital requirements and bank credit risk taking in developing countries. Department of Economics and Finance Working Papers, 1991–2006, paper 34.
Ismal, Rifki. (2010). Strengthening and improving the liquidity management in Islamic banking. Humanomics. 26(1). PP 18-35.
Jacques, K. and P. Nigro (1997): Risk-based capital, portfolio risk, and bank capital: A simultaneous equations approach. Journal of Economics and Business 49 (1997) 533-547. 
Keeley, M. C. and F. T. Furlong (1990): A reexamination of mean-variance analysis of bank capital regulation. Journal of Banking and Finance 14 (1990) 69-84.
Repullo, R., Suarez, J. (2012) The procyclical effect of bank capital regulation. The Review of Financial Studies 26(2): 452–490.
Rime, B. (2001): Revision of the Basel Accord: implications of the co-existence between the standardized approach and the internal ratings-based approach. Symposium on Regulation and Supervision of Financial Intermediaries.
Rochet, J.-C. (1992): Capital requirements and the behaviour of commercial banks. European Economic Review 36 (1992) 1137-1178. 
Santos, J. 2001: The regulation of bank capital: A review of the theoretical literature. Financial Markets, Institutions and Instruments 10(2): 41–84.
Shrieves, R. and D. Dahl (1992): The relationship between risk and capital in commercial banks. Journal of Banking and Finance 16 (1992) 439-457. 
Tektas, Arzu & Nur Ozkan-Gunay, E & Gunay, Gokhan. (2005). Asset and liability management in financial crisis. The Journal of Risk Finance. 6(2). PP 135-149

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