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.

Related

The WSJ reported Barnes and Nobles is upping the ante

From Hype to High Impact In the dynamic realm of

While this article by Randall Stross doesn’t mention exact correlations,