The Impact of the iPhone5 on the US Economy

J.P. Morgan’s chief economist, Michael Feroli, estimated sales of the iPhone5 could boost annualized GDP growth in calendar Q4 by 0.25 to 0.5 percentage points.  You can read more here.

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Much has been written about big data (insert air quotes)

The dust has settled. The results tallied. Black Friday, CyberMonday,