The consumer is said to be in equilibrium when he plans his expenditure on x, y and z commodities in such a way that he ultimately attains
A. $$M{U_X} = M{U_y} = {M_Z}$$
B. $$\frac{{M{U_X}}}{{{P_X}}} = \frac{{M{U_Y}}}{{{P_Y}}} = \frac{{{M_Z}}}{{{P_Z}}}$$
C. $$\frac{{M{U_X}}}{{{P_X}}} = \frac{{M{U_Y}}}{{{P_Y}}} = \frac{{M{U_Z}}}{{{P_Z}}} = M{U_M}$$
D. $$\frac{{M{U_X}}}{{{P_X}}} < \frac{{M{U_Y}}}{{{P_Y}}} < \frac{{M{U_Z}}}{{{P_Z}}} < M{U_M}$$
Answer: Option C

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