Zubin Jelveh (the blogging colleague of Felix Salmon at Portfolio magazine):
[...] One of the biggest findings was that an employee’s trading performance was most strongly correlated with the trading results of the other Googlers around him (or her). Friends and other coworkers who were not sitting in close proximity played a significantly smaller role.
I attended the [American Economic Association] session in New Orleans on Friday where Eric Zitzewitz of Dartmouth showed off the paper (co-written by Justin Wolfers of Wharton and Bo Cowgill, a project manager at Google who came up with the idea to run the markets) and
here is an eye-popping chart similar to one from the presentation that best illustrates their finding of information sharing in close quarters. [...]
Zubin Jelveh tells me that the Google blog will soon feature a regression chart that shows off the information clusters.
Using Prediction Markets to Track Information Flows: Evidence From Google – (PDF file) – by Bo Cowgill (Google economic analyst), Justin Wolfers (University of Pennsylvania) and Eric Zitzewitz (Dartmouth College)
