The Basel III net stable funding requirement, scheduled for adoption in 2018, requires banks to use a minimum share of long-term wholesale funding and deposits to fund their assets. This paper introduces a stable funding requirement (SFR) into a small open economy DSGE model featuring a banking sector with richly-specified liabilities. We estimate the model for New Zealand, where a similar requirement was adopted in 2010, and evaluate the implications of an SFR for monetary policy trade-offs. Altering the steady-state SFR does not materially affect the transmission of most structural shocks to the real economy and hence has little effect on the optimised monetary policy rules. However, a higher steady-state SFR level amplifes the effects of bank funding shocks, adding to macroeconomic volatility and worsening monetary policy trade-offs conditional on these shocks. We find that this volatility can be moderated if optimal monetary or prudential policy responds to credit growth.
Jacob, Punnoose and Anella Munro (2018). ‘A prudential stable funding requirement and monetary policy in a small open economy’, Journal of Banking and Finance, Elsevier, Volume 94(C), Pages 89-106, DOI: https://doi.org/10.1016/j.jbankfin.2018.06.004.