Evidence outside the tax arena suggests that firms earn rents in the presence of agglomerations, which could lessen the mobility of firms in the agglomeration. If so, then governments might be able to extract a portion of rents from businesses through higher tax rates without as much concern...

The literature investigating strategic tax competition among U.S. state has shown significant variation in terms of the magnitude, and even the sign, of tax competition effects. One dimension upon which variation in results may occur is the period of analysis. It is plausible that tax...