Impact of deposit rate deregulation in Hong Kong on the market value of commercial banks

Abstract

This paper examines the effects of a series of events leading up to the deregulation of deposit interest rates in Hong Kong on the market value of banks. All the evidence suggests that banks earned rents from deposit interest rate rules (IRRs) and deregulation would lower these rents and hence bank market values. On average, the total abnormal return due to interest rates deregulation was around negative 4%. There is some evidence that large banks and banks with high deposit-to-asset ratio suffered a bigger drop in value, suggesting that these banks enjoyed a bigger subsidy under the IRRs.