If before this toy is not only China cost advantages of words, the expansion of the scale of the industry and the products of the average cost down makes Chinese toys with competitive in the international market, the enterprise of a dynamic exports of toys, which generate international trade. Because of the open trade, toy market includes foreign demand, the demand curve move to D2, toy market's final price for P2, in the long run, the equilibrium (AC2 = P2), each enterprise production q2 still...