Inflation-targeting central banks around the world often state their inflation objectives with regard to the consumer price index (CPI). Yet the literature on optimal monetary policy based on models with nominal rigidities and more than one sector suggests that CPI inflation is not always the...

A recent paper has suggested there might be a trade-off between inflation and unemployment at low inflation rates and this has led some economists to recommend that Canada increase its inflation rate. Underlying this view is the idea that, because firms are reluctant to cut workers' nominal...