Sweden decided to open the floodgates of school privatization in 1992. Twenty-three years is a good long time to see the effects of vouchers and for-profit corporations running schools. As this article in The Daily Kos shows, the results are not pretty. Test scores have fallen, segregation of all kinds has increased, one of the private corporations running schools went bankrupt, stranding students and wasting millions.
The gains are hard to discern.