A characteristic of consumption taxes that is often ignored is that they can go above 100%. So a progressive consumption tax could easily be 0 for low levels of

A characteristic of consumption taxes that is often ignored is that they can go above 100%. So a progressive consumption tax could easily be 0 for low levels of consumption and 100%+ for ultra-high ones (think, over 10MM/yr). I can't think of why we wouldn't tax consumption above 50MM say at a multiple or two of 100%. Since much of this consumption is conspicuous, it's even possible that high levels of taxation could even be geffen-like: Yes, we both have lear jets but I'm so rich and spend so much that mine cost _twice_ what yours did.