Extending the previous problem, suppose China decides to enter the VLCC construction market. The duopoly now becomes a triopoly, so that although price is still P = 180 - Q, quantity is now given by Q...


Extending the previous problem, suppose China decides to enter the VLCC construction market. The duopoly now becomes a triopoly, so that although price is still P = 180 - Q, quantity is now given by


Q = qKorea
+ qJapan
+ qChina. Assume that all three countries have a per-ship cost of $30 million:


cKorea
= cJapan
= cChina
= 30.


(a) Write the profit functions for each of the three countries in terms of


qKorea, qJapan, and qChina, and cKorea, cJapan, or cChina. Find each country’s best-response rule.


(b) Using your answer to part (a), find the quantity produced, the market share captured [see Exercise S8, part (c)], and the profits earned by each country. This will require the solution of three equations in three unknowns.


(c) What happens to the price of a VLCC in the new triopoly relative to the duopoly situation in Exercise S8, part (b)? Why?




May 26, 2022
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