During the Great Recession, despite the large fall in output, inflation did not fall much. This is known as the missing deflation puzzle. In this paper, we develop and estimate a New Keynesian Dynamic Stochastic General Equilibrium model to provide an explanation for the puzzle. The new model...

It has been shown that extending the Calvo model to account for the heterogeneity in price stickiness suggested by the micro-evidence significantly improves the performance of the model. In the new model, price-changing firms are chosen disproportionately from sectors with more flexible prices....

This paper aims to explore the impact of rising uncertainty on prices using micro-data on prices and multi-sector new Keynesian models. We identify diverse price responses to increasing macroeconomic uncertainty: goods with relatively flexible prices experience a decline due to lower demand...

It has been noted that the search and matching model cannot account for the observed unemployment fluctuations. Gertler and Trigari (2009) show this weakness of the model disappears when wage stickiness is introduced to the model. Pissarides (2009) disagrees with this modification, arguing that...

This paper aims to explore the impact of rising uncertainty on prices using micro-data on prices and multi-sector new Keynesian models. We identify diverse price responses to increasing macroeconomic uncertainty: goods with relatively flexible prices experience a decline due to lower demand...

In this paper, we see how much the average monthly frequency of price changes ties down the behavior of firms in steady-state in terms of the average length of price-spells across firms. We use the UK CPI data at the aggregate and sectoral level and find that the actual mean is about twice the...

We develop a model of sluggish firm entry to explain short-run labor responses to technology shocks. We show that the labor response to technology and its persistence depend on the degree of returns to labor and the rate of firm entry. Existing empirical results support our theory based on...

We examine the relationship between the prices paid by households and their shopping patterns measured in terms of shopping frequency and the range of stores visited. We use the TNS data which allows us to control for household heterogeneity. The main contribution of the paper is that we find...

In this paper we develop a general model of an imperfectly competitive small open economy. There is a traded and non-traded sector, whose outputs are combined in order to produce a single final good that can be either consumed or invested. We make general assumptions about preferences and...

This paper analyses an open economy Ramsey model with an endogenous labour supply without capital. The technology defines an optimal firm size. Changes to the number of firms is subject to adjustment costs, so that the entry dynamics is determined endogenously. We find that there is a short run...