I23, C25.

Using a data set of highly cited researchers in all fields of science, we show that the gap in scientific performance between Europe, especially continental Europe, and the USA is large. We model the number of highly cited researchers in a sample of countries as a function of physical and human...

Using a new data set that allows us to analyze precisely the research output in all fields of science, we show that the gap in scientific performance between Europe, especially continental Europe, and Anglo-Saxon countries, especially the USA, is large. We measure research quality by the number...

We develop a model of commodity tax competition with monopolistically competitive internationallymobile firms, transport costs, and asymmetric country sizes. We investigate the impacts of noncooperativetax setting, as well as of tax harmonization and changes in the tax principle, in both...