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26 Technium Soc. Sci. J. 1 (2021)

handle is hein.journals/techssj26 and id is 1 raw text is: Technium Social Sciences Journal
Vol. 26, 1-16, December, 2021
ISSN: 2668-7798
www.techniumscience.com
An assessment of interest rates on high income earners in
South Africa
Kometsi Kotlele1, E.I. Edoun2, Vinessa Naidoo3
Tshwane University of Technology, Pretoria, South Africa
kkotmetsi@gmail.com', edounsen@hotmail.com2
Abstract. The globalisation phenomenon has enhanced relationship between economies in the
world through free market and movement across borders. In such conditions, each government
should properly manage and control exchange requirements at domestic and global level through
implementation of relevant monetary policies to sustain economic development. Considering
the impact of the currency and interest rates on expenditure and/or revenues, this study reports
on the results of real interest rates on high income households in South Africa. The study
employed the use of quantitative secondary data involving interest rates. Time series data sets
on three independent variables over a period of twenty years arising from 1998 to 2018 was
used. The data was collected from South African Reserve Bank (SARB) and Statistics South
Africa (STATSSA). The statistical bulletins, annual reports and databases were used following
permission from the relevant custodians of data from SARB and STATS SA. Data analysis was
done using STATA software. The study employed the use of both correlation and linear
regression methods of analysis on the changes recorded on how interest rates impact on the
behaviour of households for the variables under observation and these are personal transport,
household credit and durable goods consumed at the household level. Research findings
revealed that a negative relationship exists between real interest rates as adjusted for inflation on
the overall consumption of goods in the household level. Furthermore, an increase of the interest
rates leads to a decrease in spending while the decrease of interest rates leaves more money in
the households for increased spending in all areas of credit consumption and in this case all
research variables under study increased with a decreased real interest rate.
Keywords. Interest rate; regression analysis; households; consumer price index; monetary policy
1. Introduction
The subject of interest rates has been discussed and written about exhaustively by many
scholars around the world. However, there are still many opportunities for further studies in
the field of economics and how it affects consumers and investors alike. In this research study,
one critical area of macroeconomics on interest rates and how it affects the high-income
households in South Africa has been investigated.
The management of interest rates is crucial for the economic development through
spending and saving behaviour of consumers and business as argued by Acha & Acha (2011).
In a way it acts as a facilitator for the flow of funds between lenders and borrowers. Interest
rates remains an economic aggregate managed by the central bank. The South African Reserve
Bank (SARB) uses the monetary and interest rates policy for inflation targeting with the general
mandate of preserving currency for attainment of macroeconomic development objectives of

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