The state contributes relatively little to the actual cost of public school construction, serving only as a backer of construction bonds; the actual money comes from school districts. Lansing’s involvement in the details of bidding on public school construction is minimal. As in Ohio, public school construction is a relatively modest part of the overall construction marketplace, and the effect of this exemption on construction labor markets should be minimal. Nevertheless, exempting public school construction from Michigan’s prevailing wage mandate could save taxpayers approximately $120 million annually, based on 2002 estimates.