Hi all,

I have this problem for my homework and I am having trouble understanding it. If someone could be kind enough to help, i would be extremely grateful.

Q Which of the following could be estimated using OLS. give your reasoning.

a) Y= a + bX +u
b) Y= a+bcX +u
c) Y= eaXbeu
d) lnY= a +blnX + u
e) Y=a + bX2 +u
f Y = a +b2X + u

note: 2 denotes square