Canada tried the transaction tax - it was a loser, and resulted in retail investors paying 9% more to trade.<p><a href="http:&#x2F;&#x2F;qed.econ.queensu.ca&#x2F;pub&#x2F;faculty&#x2F;milne&#x2F;322&#x2F;IIROC_FeeChange_submission_KM_AP3.pdf" rel="nofollow">http:&#x2F;&#x2F;qed.econ.queensu.ca&#x2F;pub&#x2F;faculty&#x2F;milne&#x2F;322&#x2F;IIROC_FeeCh...</a><p>Most of your other suggestions would probably have the same effect.