« Microsoft Reboot! | Main | Investors Fiddled While Carly Delivered »

May 11, 2007


TrackBack URL for this entry:

Listed below are links to weblogs that reference Gerstner's Rule:


Michael Sullivan

Dear Professor Cook. Following your data and calculations avidly! Might i point you to a useful resource that has just gone live on the internet. WolframAlpha bring together power of curated data, with the ability to perform some math on it. Could be a useful tool moving forward.
e.g. http://www88.wolframalpha.com/input/?i=revenues+ibm+%2B+orcl+%2B+msft+%2B+sap+%2B+emc+%2B+csco+%2F+market+cap+ibm+%2B+orcl+%2B+msft+%2B+sap+%2B+emc+%2B+csco

Victor Cook


I compiled these data from SEC filings reported in S&P COMPUSTAT date available online at Wharton Research Data Services [WRDS]. The 2007 data are not yet available from that source but you can get them from EDGAR OnLine I*Metrix. The metric and its measurement are described in my book. Let me know if you have any other questions. Thanks for your interest.


Renee Chemel

I was wondering where I can get the graphical information listed above for the year 2007? There are no references above. Thanks!

Verify your Comment

Previewing your Comment

This is only a preview. Your comment has not yet been posted.

Your comment could not be posted. Error type:
Your comment has been saved. Comments are moderated and will not appear until approved by the author. Post another comment

The letters and numbers you entered did not match the image. Please try again.

As a final step before posting your comment, enter the letters and numbers you see in the image below. This prevents automated programs from posting comments.

Having trouble reading this image? View an alternate.


Post a comment

Comments are moderated, and will not appear until the author has approved them.