The media is filled with stories today about Obama and Clinton, each trying to anti-NAFTA each other. Mark Perry has a fascinating post today about this at Carpe Diem (Home of the coolest economics graphs on the web.) First, there is this graph:
This normalized to 2002 output levels. Except for the dip due to the 2001 recession, we see a steady rise in manufacturing output from the early 1990s through 2005. If labor productivity were staying constant and jobs were moving out of the country, then we should be seeing a decline in output as jobs leave the country. That brings us to a second graph:
Perry notes that more than five million manufacturing jobs were created in the three years after NAFTA, reaching a plateau in the late '90s. Then there was a dramatic drop of almost 20,000 jobs (nearly 20% of the total) in a couple of years during the 2001 recession, yet manufacturing output accelerated to its highest growth rate in the past twenty years.
The implication appears to be a significant increase in worker productivity due largely to technological innovations. This corresponds well with what I've read elsewhere of businesses finally being able to take advantage of computer technology in a big way starting at the end of the '90s. Here is a chart that shows the longer trend in Manufacturing Jobs from the Federal Reserve of St. Louis.
Anyway, NAFTA appears to have had little or no impact on the recent decline in manufacturing jobs.



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