Part 3: Short Answer Questions. Please BRIEFLY answer the following question. (5 points)
A large share of the world supply of diamonds comes from Russia and South Africa. Suppose that the marginal
cost of mining diamonds is constant at $1000 per diamond and the demand for diamonds is described by the
following schedule: [Please explain and show your steps.]
Price Quantity
$8,000 5,000 diamonds
7,000 6,000
6,000 7,000
5,000 8,000
4,000 9,000
3,000 10,000
2,000 11,000
1,000 12,000
1. If there were many suppliers of diamonds, what would be the price and quantity?
2. If there were only one supplier of diamonds, what would be the price and quantity?
3. If Russia and South Africa formed a cartel, and the countries split the market evenly, what would be
South Africa's production and profit?