Chris, would you mind telling us what the variances of u1, u2, and u3
were? I think you gave us all the necessary info, but I'm too lazy. :-)
On personality/motivation, there is a large literature in personality
psychology finding that IQ and Conscientiousness are uncorrelated.
A while back I said that the Card/Krueger minimum wage study was at the
90th percentile of quality for published empirical work. I would put
Murray and Herrnstein at the 99th percentile of quality. Applied work
is never perfect, but I have to think you're being way too harsh.
What empirical problems *do* you think are "pretty easy"?
--
Prof. Bryan Caplan [EMAIL PROTECTED]
http://www.gmu.edu/departments/economics/bcaplan
"We may be dissatisfied with television for two quite different
reasons: because our set does not work, or because we dislike
the program we are receiving. Similarly, we may be dissatisfied
with ourselves for two quite different reasons: because our body
does not work (bodily illness), or because we dislike our
conduct (mental illness)."
--Thomas Szasz, *The Untamed Tongue*
