Are charters more efficient than districts?

The USOE blog linked today to a study analyzing the administrative spending of districts and charter schools in Michigan. In Michigan, the study finds that charters spend $800 more per student on administration and $1100 less in the classroom.  As it happens, that's my next post in my series (see the previous entries here, here, and here.) on school funding in Utah.  You might be surprised at what the data show.  Stay tuned.