Investigating the bank lending channel in South Africa : a VAR approach

Abstract

The monetary policy transmission mechanism can broadly be categorised into three separate channels: the interest rate channel, the credit channel and the other asset price channel. This paper seeks to examine the bank-lending channel of the credit channel of monetary policy in South Africa by making use of structural vector autoregressions (SVAR’s). The pass-through effects of a change in the repurchase (repo) rate on bank deposits and loans and output, are tested using a parsimonious vector error correction model (PVECM). The Johansen (1988) cointegration procedure is used to test for a demand- or supply-driven bank-lending channel. In this way, the validity and effectiveness of the monetary policy regime in South Africa is tested and evaluated.