The deterioration was worse in counties dependent on manufacturing, where income dropped by 9 percent.
Most of the decline was in manufacturing, where 2.6m jobs have been lost since July 2000.
The decline is greatest in manufacturing, where only 1.9 million hourly workers still earn that much.
Productivity growth was again strongest in manufacturing, where it increased 6.4percentt from the previous quarter.
But, as Mr Gordon has shown, in non-durable manufacturing, where you can count the output, this has not happened.
These are ruled by common standards, as in IT hardware manufacturing (where high-volume, low-cost Dell operates).
"I don't know of any analogue in American manufacturing where quality went so low and people still consumed the product".
These people worked in industries like manufacturing, where Facebook and Twitter weren't a part of daily life.
They fear that expanded trade would cost jobs in this country, particularly in manufacturing, where unions are strong.
The jobs lost have been mostly in manufacturing, where the pay for blacks has been higher than in other fields.
In the private sector, the official figures show manufacturing (where most freezes are) at 1% and private services at 2.9%.
