 Bank interest margin management based on a path-dependent Cobb–Douglas utility frameworkJeng-Yan Tsai Economic Modelling, 2013, vol. 35, issue C, 751-762 Abstract: This paper examines the optimal bank interest margin, the spread between the loan rate and the deposit rate, when the bank's preferences include the like of higher equity returns and the dislike of higher equity risks based on a path-dependent Cobb–Douglas utility function. A path dependency implies that the bank equity return can be knocked out whenever a legally binding barrier is breached. A Cobb–Douglas utility indicates substitutability between equity returns and equity risks for the explicit treatment of risk aversion. We show that an increase in the barrier results in a reduced loan amount held by the bank at an increased interest margin when the probability of hitting the barrier before the expiration date is high. The bank interest margin is negatively related to the degree of the like (Equity returns) preference relative to the dislike (equity risks) preference. Preference as such makes the bank more prone to risk-taking, thereby adversely affecting the stability of the banking system. Keywords: Bank interest margin; Cobb–Douglas utility function; Path dependency; Substitution elasticity (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:ecmode:v:35:y:2013:i:c:p:751-762 DOI: 10.1016/j.econmod.2013.08.037 Access Statistics for this article Economic Modelling is currently edited by S. Hall and P. Pauly More articles in Economic Modelling from Elsevier |
Is your work missing from RePEc? Here is how to contribute.
Questions or problems? Check the EconPapers FAQ or send mail to .
EconPapers is hosted by the
School of Business at Örebro University.