Consider now a similar model but with a minor change to the preference specification as well as the production technology. Specifically, both consumption and leisure now enter the utility in logs, and the productivity shock is labor augmenting, rather than TFP. Again a social planner seeks to solve: max U = {ct,ne,ito s.t. : EoB {Inc+In It} Bt t=0 Yt = c + it where: :yt = kt (ent) -a : = Xt : 1 Zt=pt-1+t Additionally, suppose there exist a second stochastic disturbance hitting the economy. In particular, assume that the economy is subject to an investment shock such that: kt+1=et+ (1-6) kt Intuitively this shock affects the rate at which new investment can be transformed into productive capi- tal. Further, assume this second disturbance is correlated with the original technology process {} in the following manner: n+4=1 ko > 0 21-1 (5)-(83)(C)-(3) P Et (3)-((8)-(2, 2)) Based on the above answer the following: (a) Set up the lagrangean of this infinite horizon problem, (b) Derive the first order conditions of the problem. (c) Obtain the intratemporal and intertemporal optimality conditions.