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 state-regular basis (e.g. set prices ending in a 9), even though such an approach appears suboptimal. The paper attributes regular behaviour to...

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 provide a novel (and old) argument for the nonequivalence of tariffs and quotas, based on the famous paper by Hotelling (1931). Unlike tariffs, quantitative restrictions are inherently dynamic. As long as the foreign exporter earns positive marginal profits, he raises their present value by...