Jubbergun wrote:
I think the analogy is fairly valid. Grades and incomes are both "reap what you sow" outcomes. Once you start balancing out the grades so that everyone gets the same thing, the only motivation the high achievers have to keep achieving at a high level is to keep the low end of the curve from dragging their average down. It has been historically shown that when you "equalize outcomes" that eventually those who gained their income with higher levels of production stop producing at higher levels. There is no incentive do any more than anyone else because you're not getting any more than anyone else. The mean comes to be defined by the lowest common denominator.
If you think that in a system of education like the one we have, where your choice of colleges and/or graduate programs are limited at least in part by your grades, that having your average pulled down because you had to "share" it with some mouth-breather won't make a difference, the only person you're fooling is yourself.
Taxes don't come close to "equalizing outcomes". Coupled with social programs, they give people at the bottom a leg up, leave the middle about the same, and slightly reduce the number of yachts the absolute top earners can buy. The top 20% of households in the US still earn 50% of the annual income. The same thing would apply to taxing grades -- the people at the top would still be at the top. If a grad school wanted to recruit the top 5% of undergrads, they would still be able to; even if the grade threshold for the top fell in absolute terms, there would still be a relative difference which is what these schools would look for.