Busy day so here are a few union related tidbits. The first, and most interesting, is the NY Times/CBS poll results on American's attitudes toward public sector unions.
The second is a study of public employee compensation that shows that public employees are not compensated more than their private sector peers even when controlling for benefits.
The third is an opinion piece by Robert Barro in the Wall Street Journal that argues against union rights. Note that I tried to find the paper cited in the article by Thomas Holmes, but according to his CV, he published nothing in 2000, and I don't see a paper that matches the description, perhaps someone can help me out.
Update: here it is, thanks to a reader, in a working paper version.