a proposed tax on international financial transactions, especially speculative currency exchange transactions; suggested by Nobel Memorial Prize in Economic Sciences Laureate economist James Tobin
Capital controls are taxes, and differ from exchange controls. The latter place limits on the amount of a nation’s currency that can be taken abroad. Instead, the financial transaction tax or Tobin tax is a form of capital control, a tax on and ‘sand in the wheels’ of capital flows.
idk if she adequately clarified the diff tbh (seems like it's a case of limits vs taxes, which is not what the italicizing implies)