Adam Ozimek looks at two recent school choice studies and comes to a very interesting conclusion.
Furthermore, this type of evolutionary progress will be hard for studies that compare the performance of any existing schools to capture. New schools will have a lot of learning to do, and the best schools will evolve to be the best over time as they learn what works best and how to best serve local populations and labor markets. But by the time this evolution has produced it’s biggest gains the system will be closer to competitive equilibrium, where [one] would expect the public schools that survive to perform as well as the private schools that survive. At no point in this process will comparing charters or private schools and public schools reflect the largest gains of school choice. At some points you would expect zero difference.