It's bad for the cities as a whole because it's a zero sum game, if you attract a company with tax cuts that's a loss on some other city The EU does this bette

It's bad for the cities as a whole because it's a zero sum game, if you attract a company with tax cuts that's a loss on some other city The EU does this better. EU courts can deem a tax break state aid and require the company to pay back taxes. This disincentives states competing against each other on tax revenue.