Empirical analyses of Cagan?s money demand schedule for hyper-inflation have largely ignored the explosive nature of hyper-inflationary data. It is argued that this contributes to an (i) inability to model the data to the end of the hyper-inflation, and to (ii) discrepancies between ?estimated? and ?actual? inflation tax. A simple solution to these issues is found by replacing the conventional measure of inflation by the cost of holding money.
Cost of holding money co-explosiveness co-integration explosive processes hyper-inflation