New report from American Enterprise Institute says policy must give private sector more incentive to conduct third-party evaluations.
Charter schools in Michigan, which are mostly managed for profit, spend more on school administration than traditional public schools.
Speech, like conference, addresses technology but leaves privatization questions unanswered.
Authorities are looking into a contract Chaka Fattah Jr. son of U.S. Rep. Chaka Fattah, received from Philadelphia-area for-profit education management company.