Tobin tax

A Tobin tax was originally defined as a tax on all spot conversions of one currency into another. It was suggested by James Tobin, an economist who won the Nobel Memorial Prize in Economic Sciences. Tobin's tax was originally intended to penalize short-term financial round-trip excursions into another currency. By the late 1990s, the term Tobin tax was being applied to all forms of short term transaction taxation, whether across currencies or not. The concept of the Tobin tax is being picked up by various tax proposals currently being discussed, amongst them the European Union Financial Transaction Tax as well as the Robin Hood tax.