The Solow model is an important formal model of economic growth. Assume that the production function is Y = 2F(K,N) = zKN-a, where 0 < a < 1. Production is constant returns to scale. We use lowercase to denote variables in per capita terms. The evolution of capital is given by K' = (1 d)K + I. sY and that N' = (1 + n)N. = Assume, as we have done so far, that I Using these, find the correct equation for the evolution of capital-labor ratio, k. Ok' = Ok' Ok' Ok = = sk+(1d)k 1+n szka +(1-d)k 1+n sz k+(1-d)k 1+n skan-+(1-d)k 1+n