The “distance effect” measuring the elasticity of trade flows to distance has been to be rising since the early 1970s in a host of studies based on the gravity model, leading observers to call it the “distance puzzle”. We review the evidence and explanations. Using an extensive data set...

This paper models tax competition between two countries that are divided into regions. In the first stage of the game, the strategy variable for each country is the division of the provision of a continuum of public goods between the central and regional governments. In the second stage, the...