Assume we have a constant returns to scale Cobb Douglas production function ? = ? ? where

? + ? = 1. Show that ? = ?? + ?? where ? = ?? = ?? and ? = ?? = ?? . ??? ???

1. Assume we have a constant returns to scale Cobb Douglas production function Y = La KB where aY aY atB = 1. Show that Y = wl + rk where w = MPL = aL and r = MPk = OK