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Using two years of data from a Japanese bank, we present statistical evidence that knowledge management works. (1) Workers who consumed more documents shared via a Q&A platform exhibited roughly a 10% productivity gain. (2) These gains accrue disproportionately to less skilled workers. (3) Workers who answered more questions were promoted at a faster rate.
Presented at NBER Economics of IT Workshop July 22 - 23, 2011.
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