I'd tax rent-seeking, and the most effective way to do that is a land value tax.
Re:How Technology Hijacks People’s Minds
by dredmorbius on Friday May 20, 2016 @10:53PM
(#11742971)
I'm seeing merits to land tax, inheritence, financial transfers, and either a corporate or corporate transfers tax.
Allowances for that which is reasonable. Disallowances for that which is not.
Whatever is more expensive, you have less of.
Your question can be restated: what's your overall economic goal?
You tax to achieve that.