Higher interest rates can also strengthen the Australian dollar, making imports cheaper and reducing the demand for exports. And our interest rates are tied to short-term interest rates. Richardson believes there's another lever that could be used instead of or alongside the cash rate: superannuation. READ MORE Why your super fund's strong run is unlikely to lastThen there's the question of who would actually manage a super guarantee lever. Richardson and Eslake point to the RBA as the obvious candidate since it already manages inflation through the cash rate.