"As U.S. real output grew 13 percent between 2002 and 2006, Massachusetts trailed at 9 percent.
* Manufacturing employment fell 7 percent nationwide those years, but sank 14 percent under Romney, placing Massachusetts 48th among the states.
* Between fall 2003 and autumn 2006, U.S. job growth averaged 5.4 percent, nearly three times Massachusetts' anemic 1.9 percent pace.
* While 8 million Americans over age 16 found work between 2002 and 2006, the number of employed Massachusetts residents actually declined by 8,500 during those years.
"Massachusetts was the only state to have failed to post any gain in its pool of employed residents," professors Sum and McLaughlin concluded.
In an April 2003 meeting with the Massachusetts congressional delegation in Washington, Romney failed to endorse President Bush's $726 billion tax-cut proposal."
[Cato Institute annual Fiscal Policy Report Card - America's Governors, 2004.]
There are many reasons to vote against Romney, but.....
Yes, job growth and GDP growth in Massachusetts were clearly below the USA average when Romney was governor.
However, job growth and GDP growth are closely related to population growth.
You forgot to mention that population growth in Massachusetts was also BELOW the USA average when Romney was governor.
OK, I guess you can blame Romney for low population growth.
But, almost every state on the northeast coast either lost population during that time period, or grew more slowly than Massachusetts.