"There is a proliferation of them available these days, and the TV advertising suggests they can cure you very easily, " he says.

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LET'S FACE IT: Buying a mutual fund can be a pretty confusing business these days, what with the proliferation of funds, fund families and fund surveys.

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But it's not because there's a proliferation of jet-setting billionaire tax dodgers these days.

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Iran would almost certainly give the required 90 days notice of its intention to quit the Nuclear Non-Proliferation Treaty and terminate inspections by the International Atomic Energy Agency.

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But I think on all these issues -- nuclear disarmament, nuclear proliferation, Middle East peace -- progress is going to be measured not in days, not in weeks.

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Long gone are the days of two dominant market centers that have most of the trading volume with the proliferation of dark pools.

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Schools also complain that the proliferation of lists, since BusinessWeek launched the first in 1988, has left some staff working two to three days a week gathering information for the compilers.

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