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This paper compares the number of top ranked de novo firms in the North American IT sector that have been established in three different windows: 1) before a discontinuity; 2) after a discontinuity but before the release of standards; and 3) after the release of standards. Using Datamationpsilas rankings of the top firms in the IT sector between 1975 and 1996, this paper shows that more top ranked...
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