It's not really his idea, but it's probably a good one. I remembered it as being called a Tobin tax, but that really only applies to currency exchange. Instead,

It's not really his idea, but it's probably a good one. I remembered it as being called a Tobin tax, but that really only applies to currency exchange. Instead, it's just a securities transaction tax: http://en.wikipedia.org/wiki/Financial_transaction_tax#Securities_transaction_tax http://en.wikipedia.org/wiki/Financial_transaction_tax#Secur... .