....We conclude that public-school-teacher salaries are comparable to those paid to similarly skilled private-sector workers, but that more generous fringe benefits for public-school teachers, including greater job security, make total compensation 52 percent greater than fair market levels, equivalent to more than $120 billion overcharged to taxpayers each year. Teacher compensation could therefore be reduced with only minor effects on recruitment and retention. Alternatively, teachers who are more effective at raising student achievement might be hired at comparable cost....
http://www.heritage.org/Research/Re...ng-the-Compensation-of-Public-School-Teachers