David and Morgan are farmers. Each one owns an 18-acre plot of land. The following table shows the amount of maize and squash each farmer can produce per year on a given acre. Each farmer chooses whether to devote all acres to producing maize or squash or to produce maize on some of the land and squash on the rest.
On the following graph, use the blue line (circle symbol) to plot David's production possibilities frontier (PPF), and use the purple line (diamond symbol) to plot Morgan's PPF.
_David/Morgan_____ has an absolute advantage in the production of maize, and _David/Morgan__ has an absolute advantage in the production of squash. David's opportunity cost of producing 1 pound of squash is pounds of maize, whereas Morgan's opportunity cost of producing 1 pound of squash is ____ pounds of maize. Because David has a __Higher/lower__ opportunity cost of producing squash than Morgan, __ Morgan/David __ has a comparative advantage in the production of squash, and _david/Morgan_ has a comparative advantage in the production of maize.