Hello, I have successfully added my answers but I am not sure if they are correct, if they are incorrect, I am asking that you help me please, thank you.

4. Oligopolies and Cartels A large share ofd1e world supply of diamonds comes from Russia and Soud'l Africa. Suppose that the marginal cost of mining diamonds is constant at $3,000 per diamond, and the demand for diamonds is described by the following schedule: Price QuantityI {Dollars} (Diamond's) 0,000 3,000 7,000 4,000 5,0 00 5,000 sxmo 6300 4,0 00 7,000 3,000 3,000 2,0 00 9,000 1,000 10,000 If there were many suppliers of diamonds, the price would be per diamond and the quantity sold would be DUI] diamonds. If H1ere were only one supplier of diamonds, the price would be $7,000 per diamond and the quantity sold would be 25,000 diamonds. Suppose Russia and South Africa form a cartel. @ \"Untitled - Notepad In this case, the price would be per diamond and the total quantity sold would be m diamonds. If the countries split 1e market evenly, South Africa would produce 30,900 diamonds and earn a prot of $?9,DUCI . File Edit Format View Help The other choice is as follows: If South Africa increased its production by 1,000 diamonds while Russia stuckto the cartel agreement, South A-ica's prot would increase 'I' to decreasel $100,000 . Why are cartel agreements oFten not successful? \"13% Windows (CRLF) UTF-3 0 One party has an incentive to cheatto make more prot. All parlies would make more money if everyone increased production. 0 DiFferent rms experience different costs