“Value at Risk and Bank Equity” by Udo BROLL
University of Saarland
Jack E. Wahl
The value at risk measure has become a widespread risk management concept in many different types of financial organizations. The value at risk concept is the attempt to summarize in a single number the return risk in a portfolio of financial assets. This paper studies the impact of the value at risk approach on required equity capital of a banking firm. Value at risk is a measure of risk based on a probability of loss and time in which this loss can be expected to occur. We demonstrate that managerial and market factors determine optimal asset liability and equity policy of the bank. It is shown that the probability of bankruptcy has a complex impact upon the decision making of bank management.