Monday, March 26, 2007

An alternative to school vouchers










The idea behind school vouchers is to instigate competition among schools, especially public ones. Public schools in America are in fact a gigantic bureaucracy. Not only the teachers are free from competition but also free from firing for most of the tenure- and union-protected educators. The only pressure probably comes from PTA. But as a parent with some financial resources, why would you even want to try to change the teachers and the school if you could just move to a better district or enroll your kids in private schools? As well-off parents move out, inner city schools are stuck with protected teachers and helpless parents. No way they can get out of the vicious cycle.

The beauty of school vouchers is to let the parents get back their power. As tax payers, they have every right to demand a better education for their children. It is almost painful to see such a wonderful idea suffer smear campaigns all over the country. To fight interest groups is never an easy task. But I believe in the long run America will learn to appreciate school vouchers.

My alternative to school vouchers is actually not my own idea. It has been in place in most part of East Asia for quite a long time. In Taiwan, for example, the best high schools are not private ones. It is often the case that parents enroll their kids in private schools only when they fail to get in any public ones. The trick is that junior high graduates have to take an entrance exam to get in any public high schools. The school districts often coincide with administrative divisions. For instance, Taipei city and the adjacent county, with more than 5 million in population, have only one school district. The district holds entrance exams twice a year. Pupils with the highest scores get to pick the schools first until all the slots are filled.

The system creates enormous competition among schools. The principals and teachers do not fight for budgets but for reputations. As everyone knows, competition among suppliers will only benefit consumers. I believe most of East Asian countries, such as Japan, China, and Korea, have similar systems. It turns out that public high schools in that area are probably the best in the world in terms of academic achievements.

The system, however, is not a very realistic solution to inner city schools in the U.S. I don't see any politicians dare to put their careers on reform ideas like that. It might be even more controversial than school vouchers. But let's face the truth. The way American universities compete with each other is almost the same as the system I have just described. Guess what, American higher education is the best in the world!

(Picture: freedomforum.org)

Saturday, March 10, 2007

Rate your professors










It is the time of the quarter when professors are being evaluated. I found this cool site from Greg Mankiw's blog. The website calculates so-called h-index, which measures research productivity of professors. Productivity is not only in terms of quantity but should also be of quality. The index sort of captures both: h is the number such that the researcher has at least h papers that have been cited h times.

With the help of the website, I ranked the professors of Economics Department based on the h-index:

Yin-Wong Cheung (24)
Michael Dooley (23)
Daniel Friedman* (22)
Carl Walsh (21)
Joshua Aizenman (20)
Kenneth Kletzer (17)
Michael Hutchison (16)
Donald Wittman (13)
Nirvikar Singh (12)
Lori Kletzer (11)
K.C. Fung* (11)
Robert Fairlie (11)
Phillip McCalman (7)
Federico Ravenna (6)
Bernard Elbaum (5)
David Kaun* (3)
Carlos Dobkin (3)
Ryan Oprea (2)
Justin Marion* (2)
Huibin Yan (1)
Richard Gil* (1)

*Adjusted for unmatched first name initial

Disclaimer: I don't know how accurate the website and its methodology are. I did this just for fun. If there is any mistake, please let me know. I am not responsible for any interpretation you have.

Saturday, March 03, 2007

The inconvenient moral high ground















Al Gore is said to have built a huge heated pool in his Tennessee residence. The utility bill per month is exceeding an average family's annual amount. Since the story was revealed right after his success at the Oscar, it sounds to me like a cheap shot taken by his right-wing opponents. Everyone is entitled to live a better or even luxurious life as long as he can afford it. The problem with Gore is that he sells a noble cause by standing on a moral high ground. And the taller you stand, the easier a target you become. A good policy cannot be just about good intentions. If you can't incorporate your good intentions into a well designed policy, you will probably at best sound like a zealous religious leader and at worst be called as a hypocrite.

When faced with constraints, very few people respond to conscience, but most will act according to incentives. The selfish human nature just can't be changed. That is why a Pigouvian tax on gas is more effective than a thousand "the inconvenient truth" movies. (Please refer to Greg Mankiw's blog for discussion on Pigouvian taxes).

Global warming is a serious issue that needs a good policy design to deal with. Making everyone the villain is not the solution. As it turned out, the most respected environmentalist politician can be made villain very easily with his own rhetoric.


(Picture: algore.com)