A wage setting process defined in terms of wage per hour is the key factor for obtaining negative optimal trend inflation in a closed economy. However, this inflation will be zero if the process is established on the wage per unit of human capital. The origin of both results is a dynamic mechanism that, with some differences, makes possible the attainment of a situation equivalent to wage flexibility. Finally, while the effect of trend inflation on the long-run growth rate is tiny in the first case, it is much more important in the second, highlighting the relevance of this approach.

This note studies the implications of the price reset hazard function for the monetary transmission mechanism of sticky price models. I first document some general analytical results that highlight the central role of the price (accumulative) distribution in linking the hazard function and the impulse response function. I find that nominal rigidity underlying increasing hazard functions is more successful than real rigidity in replicating realistic macro persistence. In addition, numerical simulations show that the interaction between the increasing hazard function and the real rigidity provides a powerful propagation mechanism for monetary shocks.

Monetary policy should be guided by macroeconomic models with limited nominal rigidity; ‘New Classical’ or even for some issues just plain Classical (i.e. with no nominal rigidity at all) models are perfectly adequate for understanding various aspects of the economy that have previously led economists to believe in a high degree of nominal rigidity. On UK data these models account for the facts of inflation persistence and exchange rate ‘overshooting’; their impulse responses are in line with the data; and a typical example, the Liverpool Model, is marginally accepted in its entirety by the data since 1979. Such models suggest that no increased macro instability would result from taking the rigours of monetary policy one stage further from inflation targeting and ensuring that the price level itself is returned to its long-run preset target path — so that the value of money over long periods of time would be utterly predictable.

In the Dixit-Stiglitz model of monopolistic competition the effects of individual pricing decisions on the aggregate price index are neglected. This paper studies the implications of this approximation in terms of the efficiency of macroeconomic equilibria. We show that allowing for the price-index effect, makes the degree of inefficiency positively correlated with the number of agents; it also reduces the scope for New Keynesian outcomes, such as price rigidity and multiple equilibria.