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Most stock quote data provided by BATS. US market indices are shown in real time, except for the S&P 500 which is refreshed every two minutes. All times are ET ...
Check the currency rates against all the world currencies here. The currency converter below is easy to use and the currency rates are updated frequently. This is very much needed given the extreme ...
Twenty years after the introduction of the theory, we revisit what it does—and doesn’t—explain. by Clayton M. Christensen, Michael E. Raynor and Rory McDonald Please enjoy this HBR Classic. Clayton M.
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