This paper measures the full extent of downward stickiness in credit card interest rates by testing for the amount and adjustment asymmetries. We found that lenders behave asymmetrically in response to changes in the Reserve Bank of Australia's (RBA) cash rate. The RBA's rate rises are passed on...

We propose an alternative approach to examine the nonlinear (asymmetric) behaviour of interest rates which can be both size and sign dependent. Compared to other widely used approaches, our model performs quite well based on two model selection criteria.