But that assumes the FTT will not simply be passed on to end-customers, either directly by affected institutions or as reduced liquidity leads to wider bid-ask spreads.
3
我们的前提假设是:累进税的支持者必须要对最优累进率给出有力的解释。
To explain why, let us start with the premise that the defenders of any progressive tax have to give some principled account of the optimal degree of tax progressivity.