Macroland and Microworld are two countries that produce shrimp and tomatoes. In Macroland each worker can produce either 23.16 pounds of shrimp or 15.14 pounds of tomatoes per day. In Microworld each worker can produce either 29.38 pounds of shrimp or 7.06 pounds of tomatoes per day. Suppose both countries have constant opportunity cost of production and decide to specialize and exchange. The country that specializes in tomatoes is willing to sell 50 pounds of tomatoes for at least pounds of shrimp.