When I studied this issue,When you studied the issue? Who cares what the result are of you studying the issue? If there were embedded taxes that increased every level of the supply chain, there would be many economic studies describing this effect (unless you think you stumbled on something undiscovered by all the economists in the US). Why don't you try and find one of these studies?
"Who cares what the result are of you studying the issue?"
Why are you responding to my posts?