Wealth Tax Mobility and Tax Coordination
研究了西班牙财富税恢复后各地区的税收竞争与人口流动，发现财富税引发的流动性对个人所得税收入的间接损失是直接损失的六倍，而协调税率可增加总收入。
We study the effects of decentralized wealth taxation on mobility and the effectiveness of tax coordination at mitigating tax competition. We exploit the reintroduction of the Spanish wealth tax, after which all regions except Madrid levied positive tax rates. We find the mobility responses to wealth taxes are within the range of prior estimates with respect to income taxes. However, wealth tax mobility responses generate losses to personal income tax revenues that are six times larger than the direct losses to wealth taxes. Madrid could achieve higher total regional revenues by agreeing to a harmonized positive tax rate.