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The following graphs show the production possibilities frontiers (PPFs) for Shenandoah and Rainier. Both countries produce corn and pistachios, each initially (i.e., before specialization and trade) producing 18 million pounds of corn and 9 million pounds of pistachios, as indicated by the grey stars marked with the letter A. Shenandoah Rainier 48 48 42 36 PPF 36 30 30 24 24 PISTACHIOS (Millions of pounds) PISTACHIOS (Millions of pounds) 18 18 PPF 12 12 O 12 18 24 30 36 42 48 12 18 24 30 36 42 48 CORN (Millions of pounds) CORN (Millions of pounds) Shenandoah has a comparative advantage in the production of pistachios , while Rainier has a comparative advantage in the production of pistachios . Suppose that Shenandoah and Rainier specialize in the production of the goods in which each has a comparative advantage. After specialization, the two countries can produce a total of million pounds of pistachios and million pounds of corn