Home Import Demand With Home demand of D and supply of S, the no-trade equilibrium is at point A, with the price PA and import quantity Q0. Import demand at this price is zero, as shown by the point A′ in panel (b). At a lower world price of PW, import demand is M1 = D1 − S1, as shown by point B. Joining up all points between A′ and B, we obtain the import demand curve, M.