Scotland is engaged in a lively and on-going debate on greater fiscal autonomy and independence, which is politically controversial, especially in respect of tax-varying powers. The Scottish Parliament has the power to make a balanced-budget adjustment in public expenditure by varying the basic...

We analyze productivity enhancing public expenditure in a spatial economic model with labor mobility, firm-specific increasing returns to scale, and transport costs. Building on Krugman (1991), Fujita, Krugman and Venables (1999) and Redding (2016), we compare optimal investment and tax policies...