[Always Right]

I'm beginning to think your hesitance is because there is no "cascading costs" and is, therefore, impossible to illustrate. Is that it?

In realty 'cascading costs' = 'cascading profits'. They assume that each business adds a percentage profit on to their business taxes at each phase. Of course business taxes are only a small portion of the total tax bite, so they grossly overstate the impact of this alledged effect. The bottom line is, these are fudge numbers their economist use to create a benefit (lowering prices) while hiding any negative impact (ie, reduced profits). Their economists have unique methods of creating benefits out of thin air. The truth is their numbers don't add up.

[Your Nightmare]

I'd like to see these guys explain price discrimination with their theory of pricing. "Third Degree Price Discrimination" is a great example of how the market dynamic determines price. The same product is sold in different markets for different prices. What's the difference in the markets? Not costs, it's the elasticity of demand.