Country A has 16,000 units of labor and can produce 2 goods, manufactures and food. A’s producers take 2 units of labor to produce one unit of manufactures and 8 units to produce one unit of food. Country B has 36,000 units of labor and takes 6 units of labor to produce one unit of manufactures and 5 units to produce one unit of food. What is the price of manufactures in terms of food at which A and B would respectively supply manufactures? What would A export in Adam Smith’s world? What is the amount it could supply?