If a worker can produce $10$ shirts or $5$ hats in a day, what is the opportunity cost of producing $1$ shirt?
Question 3
Two producers, Alex and Bailey, can each make either apples or oranges in one hour. Alex can make $6$ apples or $3$ oranges, and Bailey can make $4$ apples or $4$ oranges. Who has comparative advantage in oranges?
Question 4
Which statement best describes gains from trade?
Question 5
If a country has an absolute advantage in producing both cars and wheat, which statement must still be true?