Computing Ordinary Demands a Cobb-Douglas Example So the mrs is MRS- d=-oUax ax1 X ax? dx1Ux2bX骨x1bx1Computing Ordinary Demands - a Cobb-Douglas Example. So the MRS is MRS dx dx U x U x ax x bx x ax bx a b a b = = − = − = − − − 2 1 1 2 1 1 2 1 2 1 2 1     / /