'The mother of all bubbles' in the US is sucking money away from the rest of the world, market expert says

Soap bubbles in front of the New York Stock Exchange (Credit: Getty Images)

U.S. dominance over global financial markets has reached extreme levels, pointing to a bubble of epic proportions, according to Ruchir Sharma, chair of Rockefeller International.

In a column in the Financial Times last week, the market expert said investors around the world are putting more money in a single country than ever before.