Australia's treasurer wants banks to pay a new tax but not pass it along to customers. He says, "Don't do it -- they already don't like you very much," reports the Australian Broadcasting Corp. Nobody should rise to a position of real power without understanding that tax incidence has nothing to do with who likes whom. It's simple: Cutting the check isn't the same as paying the price. Taxes are always -- always -- shared between buyers and sellers in some proportion, depending largely upon who "wants" the transaction more.