Might be a way to do it with a tax on private stadium construction. Allow deducting (private costs - all public subsidies). So for any local subsidies you recei

Might be a way to do it with a tax on private stadium construction. Allow deducting (private costs - all public subsidies). So for any local subsidies you receive, you have a commensurate increase in taxes. Similar problems exist with subsidies for factories, although at least those are producing something at the end of the day.