(Answered) Finding the optimal combination of two goodsGinny enjoys consuming both milk and juice. Each glass…

➤ What if marginal utilities are equal but prices differ—does that mean equilibrium?
No. Equal marginal utilities do not guarantee equilibrium when prices differ. Equilibrium depends on MU divided by price. If MU_M = MU_J but P_M ≠ P_J, then MU_M/P_M and MU_J/P_J will differ. The consumer must equalize MU per dollar, not raw marginal utilities.