Answer:
A) What product does Martha and Stewart have comparative advantage in?
B) If they both completely specialize in the products they have comparative advantage in, what is their production after specialization?
C) If Martha is willing to give 5 paint, for how many wallpapers will Stewart agree to the trade?
Explanation:
Martha's opportunity cost of spending an hour painting a room = 8/2 = 4 hours of putting wallpaper
Martha's opportunity cost of spending an hour putting wallpaper = 2/8 = 0.25 hours of painting
Stewart's opportunity cost of spending an hour painting a room = 10/4 = 2.5 hours of putting wallpaper
Stewart's opportunity cost of spending an hour putting wallpaper = 4/10 = 0.4 hours of painting
Opportunity costs are the additional costs or benefits lost resulting from choosing one investment or activity over another alternative.