To target ultra-wealthy individuals, I like the idea of a value-added tax (VAT). For a car for example, this would tax the steel producers, the components produ

To target ultra-wealthy individuals, I like the idea of a value-added tax (VAT). For a car for example, this would tax the steel producers, the components producers, the Ford plant, the dealership, and the consumer...but adjusting the VAT to be progressive, you can make it so the consumer doesn't bear much VAT at all, if you prefer. Would this work in financial industries? I can see it working with products that value is added into, but for financial instruments I'm not sure how that'd operate.