Macroeconomics Determinants of Interest Rate Spreads Among Commercial Banks in Kenya

Abstract

The determination of interest rate spread in commercial banks is influenced by various macroeconomic variables, market microstructure features and the policy environment. However, studies on factors that contribute to the interest rate spreads among commercial banks in Kenya have produced mixed results that calls for further research. This study aimed to assess the determinants of interest rate spread in commercial banks in Kenya. Specifically, the study sought to establish the effect of inflation rate, domestic borrowing, credit risk and exchange rate risk on the interest rate spreads among commercial banks in Kenya. The study was anchored on fisher hypothesis, classical theory of interest and loanable fund theories. Explanatory research design was adopted to establish the causal relationship between the study’s variables. Secondary data of the study for the period between 1970 -2022 was extracted from annual financial statements of commercial banks targeted by the study and Central bank of Kenya annual reports. Data was analyzed through descriptive and inferential statistics. The study adopted the regression model to obtain results. Based on the regression results, the study found that domestic borrowing had a significant positive effect on interest rate spreads among commercial banks in Kenya. Additionally, the study found that inflation rate, credit risk and exchange rate risk had a significant positive effect on interest rate spreads among commercial banks in Kenya. The study concluded that macroeconomic variables such as inflation rate, domestic borrowing, credit risk and exchange rate risks are key determinants of interest rate spread among commercial banks in Kenya. The study made the following recommendations to regulators and policy makers. First, ensure that the central bank's monetary policy actions effectively influence interest rates throughout the banking system and also Implement mechanisms to improve the transmission of changes in the central bank's policy rates to commercial banks' lending and deposit rates. Secondly, establish a framework for monitoring key macroeconomic indicators such as inflation, economic growth, exchange rates, and fiscal policies to identify potential factors impacting interest rate spreads and use the monitoring results to formulate timely and appropriate policy responses. The study recommends that future studies should conduct studies across different countries which could provide a more comprehensive understanding of the subject matter.