Multinational firms are known to shift profits and countries are known to compete over shifty profits. Two major principles for corporate taxation are Separate Accounting (SA) and Formula Apportionment (FA). These two principles have very different qualities when it comes to preventing profit...

This paper uses a new economic geography model to analyze tax competition between two countries trying to attract internationally mobile capital. Each government may levy a source tax on capital and a lump sum tax on fixed labor. If industry is concentrated in one of the countries, the analysis...