Not only do consumers abandon overly taxing transactions, they are also unlikely to return to the site or recommend the vendor to others.

FORBES: The Trouble With Mobile Commerce: The Experience Stinks

We should also envisage taxing financial transactions and prohibition of products like hedge funds.

BBC: Viewpoints on EU treaty change and eurozone

Economists generally frown on taxing financial transactions because that gums up markets.

ECONOMIST: Tax politics

European governments are figuring out that taxing financial transactions won't be a magical money machine and that the proposed levy might even damage the European economy.

WSJ: Review & Outlook: The Transaction-Tax Climbdown

In a report presented to a meeting of G20 ministers in Washington on Friday, the billionaire philanthropist proposed taxing financial transactions, tobacco, and shipping and aviation fuels, according to details of the report obtained by Reuters.

FORBES: Bill Gates Supports the Financial Transactions Tax

Since the mechanism of a currency transactions levy is supposed to be based on taxing the net position of foreign exchange transactions, it could represent a restriction of the free movement of capital and payments (Article 63 TFEU).

FORBES: The Stupidity of the Robin Hood Tax Reaches America

Some proposals call for taxing only short-term transactions, while others would require differentiating between speculative trades and others.

ECONOMIST: The Tobin tax: Roasting an old chestnut | The

Those who desire a free-for-all solution would have Congress remove all interstate barriers to taxation so that potential taxing jurisdictions could be given a fair shot at all interstate transactions at their own set rates and on their own terms.

CNN: The Internet tax revolt