We consider a Ramsey model with a continuum of Cournotian industries where free entry generates an endogenous markup. The model produces two different regimes, monopolistic and Cournotian monopolistic competition, resulting in non-smooth dynamics. We analyze the global dynamics of the model,...

We compute average markups as a measure of market power throughout time and study their interaction with fiscal policy and macroeconomic variables in a VAR framework. From impulse-response functions, the results, with annual data for a set of 14 OECD countries, show that the markup (i) depicts a...

This paper analyses a simple imperfectly competitive general equilibrium model where the entry mechanism generates an endogenous markup. In this second-best world fiscal policy is more effective than in Walrasian or in fixed-markup monopolistic competition models, as it produces efficiency gains...

In a recent paper, Michael Kiley argued that the Calvo model of price adjustment is both quantitatively and qualitatively different from the Taylor model. What we show is that Kiley (along with most other people) are choosing the wrong parameterization to compare the two models. In effect they...

This paper analyses a small open economy Ramsey model with an endogenous labor supply and no capital. The number of firms is subject to adjustment costs, so that the entry dynamics is determined endogenously. We find that with imperfect competition, there is a first order effect of a demand...

With a dynamic computable general equilibrium model with Pissarides and Mortensen and Pissarides type equilibrium unemployment, impacts of tax-transfer programmes are assessed for the UK. The model contains more desirable structure of households and production sectors and includes more type of...