US financial bubble ready to burst:Nobel laureate Robert Shiller

More and more investors are expressing concern that US stocks are overvalued, which may result in a major bear market - characterized by falling prices and widespread pessimism, Nobel laureate in economics Robert Shiller told the FT.

Studies have shown that the level of uncertainty among investors has peaked since the end of the dot-com boom in 2000, said Shiller.

Fifteen years ago, the US technology sector index, the Nasdaq Composite, lost 78 percent of its value, falling from 5046 to 1114 points.

"It looks to me a bit like a bubble again with essentially a tripling of stock prices since 2009 in just six years and at the same time people losing confidence in the valuation of the market," he said.