We analyze the effect of inflation on the average output of monopolistic firms facing a small fixed cost of changing nominal prices. Using Taylor expansions, we derive a general closed-form solution for the slope of the long-run Phillips curve. This very simple, unifying formula allows us to...

We ask why, in many circumstances and many environments, decision-makers choose to act on a time-regular basis (e.g. adjust every six weeks) or on a stateregular basis (e.g. set prices ending in a 9), even though such an approach appears suboptimal. The paper attributes regular behaviour to...

Discussion of: Lumpy Price Adjustments: A Microeconometric Analysis by Emmanuel Dhyne, Catherine Fuss, Hashem Pesaran and Patrick Sevestre, National Bank of Belgium International Conference on \"Price and Wage Rigidities in an Open Economy\", Brussels, October 12, 2006.

We analyze the behaviour of prices using a large disaggregated data set for Poland during transition from a planned to a market economy. The size of price changes and the frequency of adjustment both fall as the inflation rate declines. Price setters follow a mixture of state- and...

We study the behavior of price dispersion in Poland following the big-bang transition to a market economy in 1990 using a large, disaggregated data set. Intra- and intermarket dispersions fall rapidly in the early stages of transition. This is not fully explained by changes in inflation or in...

We analyse welfare effects of the interactions between the tax system and inflation in Poland and in Ukraine, using the framework developed by Feldstein (1997, 1999). This approach stresses the fact that inflation increases distortions created by the tax system, in particular distortions to...

The Covid-19 Pandemic has been a singular event that affected health, economic situation and social cohesion around the world. The International Centre for Economic Analysis (ICEA), has organized the After the Pandemic Conference Series. The conferences in the series are devoted to analyzing...

We ask why, in many circumstances and many environments, decision-makers choose to act on a time-regular basis (e.g. adjust every six weeks) or on a stateregular basis (e.g. set prices ending in a 9), even though such an approach appears suboptimal. The paper attributes regular behaviour to...