log(earnings) = beta1 + beta 1alcohol + beta 2educ + u1 alcohol = gamma0 + gamma1 log(earnings) + 2gamma educ + gamma3 log(price) + u2 Question :

log(earnings) = beta1 + beta1alcohol + beta2educ + u1

alcohol = gamma0 + gamma1 log(earnings) + 2gamma educ + gamma3 log(price) + u2Question : This identified simultaneous equation models above can be identified?