All five major banks lifted their home loan rates over the last week. While most commentators are expecting the official cash rate to stay at 5.5 percent today, other countries' central banks are beginning to ramp up their tightening programmes, and are catching up on New Zealand's comparatively high cash rate. What will this mean for the strength of the New Zealand dollar, and therefore, the price of imports? Kathryn speaks with Jarrod Kerr, the chief economist at KiwiBank.