Art Carden tweeted a link to Arnold Kling’s blogpost What I
Believe About Education
This is what Kling believes (in bold)
1. The U.S. leads the world in health care spending per
person, but not in health care outcomes. Many people look at that and say that
health care costs too much in the U.S., and we should be able to get the same
our better outcomes by sending less. Maybe that is correct, maybe not. That is
not the point here. But–
2. the U.S. leads the world in K-12 education spending per
student, but not in student outcomes. Yet nobody, says that education costs too
much and that we should spend less. Except–
3. me. I believe that we spend way too much on K-12
education.
4. We spend as much as we do on education in part because it
is a sacred cow. We want to show that we care about children. (Yes, “showing
that you care” is also Robin Hanson’s explanation for health care spending.)
5. We also spend as much as we do because of teachers’
unions. They engage in featherbedding, adding all sorts of non-teaching staff
to school payrolls (and adding more union members in the process). In
Montgomery`County, last time I looked, there was one person on the payroll for
every 6 students, but there were more than 25 students per classroom teacher.
That is why I do not think that cost disease, as discussed recently by Scott
Alexander, is the full story. It’s not just that it’s hard to raise
productivity in teaching. It’s that teachers’ unions cut down on productivity
by continually getting schools to add non-teaching staff.
6. If I could have my way, the government would get out of
the schooling business.
7. If we wish to subsidize education, we should do it
through vouchers. Note that this could be done on a progressive basis, with the
size of the voucher a declining function of parent’s income.
8. I do not expect educational outcomes to be any better
under a voucher system. That is because I believe in the Null Hypothesis, which
is that educational interventions do not make a difference.
9. However, a competitive market in education would drive down
costs, so that the U.S. would get the same outcomes with much less spending.
A few additional notes:
10. When parents seek out schools with good reputations,
they are going after schools where most of the students come from affluent
families. The schools themselves do not do much.
11. Even within income-diverse school districts, affluent
parents figure out a way to keep their kids from being surrounded by poor
children.
12. I have grown increasingly uncomfortable with the leftist
ideology preached in government schools.
At the risk of offending Art, and probably some other
people, I do not agree with most of what Kling believes. Actually, there isn’t
much in it I can find to agree with. Kling’s statement isn’t an argument. It is
a creed, with statements like “I believe we spend way too much on K-12
education.”
Even the premise isn’t consistent with the available
evidence. These
numbers from the OECD show that U.S. does not lead in spending on K-12. As
a percentage of public spending the U.S. is right around the OECD average. The
results of that spending are more difficult to compare. The usual rankings
based on test score comparisons are really not very informative, because many
of the differences in scores do not reflect statistically significant
differences. The
Brown Center Report shows that relatively few countries have scores that are significantly
higher those of the U.S. In other words, the United States
spending is near the upper end but not at the very top, and the results are at
the upper end but not at the top. The story that American public education is
outrageously expensive and appallingly ineffective is simply not supported by
the evidence.
Moreover, you would only expect spending the most money to
get you the best education, or best health care, if you think that spending is
the only determinant of educational or health performance. I don’t know anyone
who believes this. In addition, evidence of relative cost and performance is
only evidence against public education generally if the countries that perform
better are ones that do not rely on public education. I don’t know of any
evidence to that effect.
There is, on the other hand, more than a little evidence
that education matters for both individual earnings and economic growth.Measured outputs of education are associated with economic
growth. To the extent that inputs do not improve outcomes they are not
associated with economic growth. People with more knowledge about how to
produce things produce more things, if producing things is rewarded.
Easterlin, Richard A. "Why
isn't the whole world developed?." The Journal of Economic
History 41, no. 01 (1981): 1-17.
Barro on Education and Growth
David Mitch Education
and Growth a EH.Net Encyclopedia
David Hanushek on increases
in skill and economic growth
Race based differences in educational quality have also contributed
to differences in earnings between blacks and whites in the United States. See
And
Or you can watch Marianne Wanamaker present the research here
Education matters and public education has, at the very
least, been consistent with long run economic growth. If recent elections are
any indication, public schools do, however, appear to be failing at preaching
leftist ideology.
Kling’s creed about getting government out of education is
an example of libertarian Nirvana fallacy. The Nirvana fallacy is generally
used in economics to refer to a situation in which people compare an imperfect
market with a perfect (Nirvana) government solution that has never actually
existed. It, however, makes no more sense to compare an imperfect government
action to an idealized market outcome that has never actually existed.
Taken to the extreme libertarian Nirvana fallacy produces
things like Rothbard’s Power and Market
“Let us, then, examine in a little more detail what a
free-market defense system might look like. It is, we must realize, impossible
to blueprint the exact institutional conditions of any market in advance, just
as it would have been impossible 50 years ago to predict the exact structure of
the television industry today. However, we can postulate some of the workings
of a freely competitive, marketable system of police and judicial services.
Most likely, such services would be sold on an advance subscription basis, with
premiums paid regularly and services to be supplied on call. Many competitors
would undoubtedly arise, each attempting, by earning a reputation for
efficiency and probity, to win a consumer market for its services. Of course,
it is possible that in some areas a single agency would outcompete all others,
but this does not seem likely when we realize that there is no territorial
monopoly and that efficient firms would be able to open branches in other
geographical areas. It seems likely, also, that supplies of police and judicial
service would be provided by insurance companies, because it would be to their
direct advantage to reduce the amount of crime as much as possible.”
This isn’t economics; it is speculative fiction. This is
what you are able to do when you free yourself from the onerous constraint of
evidence. You can state with certainty that we can get rid of government
support for education, law enforcement, or even national defense, which have been associated with long periods of rapid economic growth, becauseyou just know that a better private
solution will emerge. By the way, Rothbard does suggest that people underestimate the private provision of law in history but see Edwards
and Ogilvie and Ogivlie
and Carus argument that people actually underestimate the role of the
state in the examples that Rothbard provides.
On a personal note, I have nothing against private schools. My
family has used both public and private schools. My wife went to Catholic
schools in St. Louis, our youngest son goes to a private school here in
Fredericksburg. Our two older children went to public schools in
Fredericksburg. I went to a lot of public schools: Longfellow Elementary
(Hastings, NE); Holstein Elementary (Holstein, NE); Minden Elementary (Minden,
NE); Sherman Elementary, Potrero Hill Junior High, Galileo High School (all in
San Francisco); and senior year at Port Angeles High School in Washington.