One assumption is that the earlier stock market boom was a classic bubble, unrelated to the slow growth of the real economy.

The new economy, it seems, produced a classic bubble.

I think what happened on Wall Street was really a classic bubble, driven by terrible incentive structures and the kind of herding we've seen in other bubbles.

It's a classic bubble.

He further argues that China's state-inspired lending boom, in response to the global financial crisis, has created a more classic leveraged bubble in commercial real estate.

His description of education as a "classic bubble" makes uncomfortable reading as universities here rush to charge £9,000.

Another view holds that the poker boom was a classic speculative bubble.

That Internet stocks were a classic bubble is without question.

Mr. Kaufman knows there are people who see the current boom in technology stocks as a classic bubble, but he doesn't sound worried.

The scandals at Enron, Andersen and Merrill Lynch can be seen as a consequence of the classic bubble that overtook the market in the late 1990's.