The Relationship Between the Markup and Inflation in the G7 Plus One Economies

Digitised version produced by the EUI Library and made available online in 2020

The Long-Run Phillips Curve and Non-Stationary Inflation

Modern theories of inflation incorporate a vertical long-run Phillips curve and are usually estimated using techniques that ignore the non-stationary behaviour of inflation. Consequently, the estimates obtained are imprecise and are unable to distinguish between competing models of inflation and test the veracity of a vertical long-run Phillips curve. We estimate a Phillips curve model taking into account the non-stationary properties in inflation and identify a small but significant positive relationship between inflation and unemployment. The results provide some evidence that the trade-off between inflation and the unemployment rate in the short-run worsens as the mean rate of inflation increases.Inflation, unemployment, long-run Phillips curve, business cycle, GMM

Dundee Discussion Papers in Economics 119:The relationship between the markup and inflation in the G7 economies and Australia

An I(2) analysis of inflation and the markup is undertaken for the G7 economies and Australia. We find that the levels of prices and costs are best described as I(2) processes and that except for Japan a linear combination of the log levels of prices and costs cointegrate to the markup that is integrated of order 1. It is also shown that the markup in each case co-integrates with inflation and that higher inflation is associated with a lower markup in the long run

Dundee Discussion Papers in Economics 121:Industry structure and the dynamics of price adjustment

Using annual US data for gross domestic product originating by sector between 1947 and 1997 it is shown that a negative long-run relationship between inflation and the markup is present across the sectors as well as in the aggregate. A preliminary explanation based on industry structure is explored for the relative sizes of the impact of inflation on the markup in the long-run for the various sectors