“Teachers unions have a popularity problem,” according to a recent Harvard study.

Harvard professor Paul Peterson writes that while approval ratings for education unions remained stable between 2009 and 2011, 2012 saw a significant dip:

In our polls from 2009 to 2011, we saw little change in public opinion. Around 40% of respondents were neutral, saying that unions had neither a positive nor negative impact. The remainder divided almost evenly, with the negative share being barely greater than the positive.

But this year unions lost ground. While 41% of the public still takes the neutral position, those with a positive view of unions dropped to 22% in 2012 from 29% in 2011.

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