A more sustainable solution is to have rotating class schedules, so teachers teach year round even if students don't go to class year round.
https://en.wikipedia.org/wiki/Programme_for_International_St...
Considering the cultural and ethnic similarity between Sweden and Finland as Nordic countries, PISA score trajectory based on voucher vs highly paid public professionals is really shocking.
Wow
In addition, I'm of the opinion that a voucher school system still needs to be backed up by public schools, for a number of reasons:
1. To make up for capacity shortages. There's no evidence that voucher schools would voluntarily maintain a surplus of seats, and there could be entire regions with permanent under-capacity, leaving kids with no schools to attend.
2. To bail out voucher schools that fail. At the very least I'd like to be assured (via legislation) that no public money will be spent to pay the debts of charter schools that are taken over by the state or by municipalities.
3. To educate kids who can't get into a voucher school.
Expecting healthy competition, after experiencing passenger aviation, cable TV service, or consumer banking, seems like a pipe dream.
An additional concern, which I don't know how to analyze: The number of passenger miles per day spent transporting kids to far-flung schools.
What essentially ends up happening is long term refusal of the vouchers, private school prices go up, or you see alternatives that are even less constitutional (I'm looking at you Kirat Yoel) in order to replicate the same extra funds without the voucher headache on the private school school side.
Interestingly, in order for them to actually compete, you actually have to massively fund the school district as a public school, a la Great Neck North/South, or some of the suburbs of San Francisco, where you regularly hear about crazy good private and public schools with about equally good outcomes for their students
Allow for a earning of teaching freedom by performance of student in reallife (aka student-tests, work-archievments). Allow teachers to take risks, aka bend the rules (skip circus-tests) by betting parts of there paycheck/benefits on there late-game-performance.