I am grateful to Rebecca Sibilia and Sean Gill for their thoughtful response to my blog post encouraging Michelle Rhee to replace her failing schools model of school choice with an approach based on equal opportunity.

Rebecca and Sean defended StudentsFirst’s support of the failing schools model on pragmatic grounds. They wrote: “When state resources are limited or the existing supply of desirable private schools is limited, it also makes sense to prioritize vouchers or scholarships for those low-income children attending a low-performing school or living in low-performing school districts.”

Every community suffers from an insufficient supply of effective schools for low-income students. But in Florida we’ve learned that increasing demand - not limiting demand - is the best way to increase supply.

Access to Florida’s tax credit scholarship program for low-income students, which I help administer, is limited by a state-imposed cap. But our demand is not limited, so it often exceeds supply. This excess demand has not had a negative effect on students or the program. Instead, it has generated political pressure on the state Legislature to allow our cap to rise to meet this additional demand.

In 2010, as a result of excessive demand, the Florida Legislature voted to allow our program to grow 25 percent every year the demand hits or exceeds 90 percent of supply. The result has been extraordinary growth of supply and demand. While we have been awarding scholarships since 2002, 34 percent of our growth has occurred in just the last two years. This school year we added 10,000 more students to the program and had more than 12,000 students add their names to our waiting list after we hit our cap.

We’ve also been adding about 100 new private schools per year to the program, and some have started to expand their physical capacity to serve more students. Had we adopted the StudentsFirst approach of limiting demand when faced with limited supply, this extraordinary growth would not have occurred.

Today, more than 43 percent of Florida’s preK-12 students attend a school other than their assigned district school. Charter schools, magnet schools, virtual schools, career academies, dual enrollment and homeschooling are all growing dramatically. Private schools are already struggling to maintain their market share given all these choices. If we were to limit our scholarships to low-income students in state-designated failing schools, then many private schools serving low-income students might be forced to close - to everyone’s detriment. (more…)