Suppose Global Demand For OPEC Oil Is Given By P = 120 - 2q
Suppose Global Demand For Opec Oil Is Given By P 120 2q And That
Suppose global demand for (OPEC) oil is given by P = 120 − 2Q and that each country has costs given as AC = MC = $20. The cartel maximizes profit at Q = 25 million and P = $70/barrel.
(a) If instead of keeping to this output, all members overproduced their quotas by 20 percent, what would be the effect on OPEC’s total profit?
(b) Suppose instead one member increased production from 2 million to 3 million barrels. Break down the impact of this in terms of revenue and costs for both the cheating country and the cartel.
Paper For Above instruction
OPEC, as a cartel of oil-producing countries, aims to maximize its collective profits through coordinated production quotas. The problem presented involves understanding the impact of deviations from agreed quotas on the cartel’s profitability, both in scenarios where all members overproduce and where a single member cheats by increasing output unilaterally. This paper analyzes these scenarios through economic principles, focusing on their implications for total revenue, costs, and overall profit.
Introduction
The Organization of Petroleum Exporting Countries (OPEC) exerts control over oil supply to influence global oil prices and maximize collective profits. The cartel’s decision-making involves setting output levels where marginal cost equals marginal revenue, considering the demand function for oil. Understanding the implications of non-compliance—either through overproduction or unilateral increase—is essential for evaluating the stability and profitability of OPEC’s strategy. This paper examines two critical scenarios: first, when all members overproduce by 20%, and second, when a single member increases production by one million barrels, analyzing their respective effects on profit and market dynamics.
Demand Function and Cost Structure
The demand for OPEC oil is given by P = 120 − 2Q, where P is the price per barrel and Q is the total quantity supplied in millions. The linear demand curve indicates that as supply increases, price declines at a rate of 2 dollars per million barrels. Each member’s cost structure is characterized by constant average and marginal costs at $20 per barrel, suggesting that profit maximization occurs where price exceeds marginal cost by a margin attributable to the cartel’s strategic quota setting.
Profit Maximization in the Collusive Equilibrium
Under collusion, OPEC sets output such that the marginal revenue equals marginal cost. Given the demand function P = 120 − 2Q, the total revenue (TR) is:
TR = P × Q = (120 − 2Q)Q = 120Q − 2Q².
The marginal revenue (MR) is:
MR = d(TR)/dQ = 120 − 4Q.
Setting MR equal to marginal cost (MC = $20):
120 − 4Q = 20 ⇒ 4Q = 100 ⇒ Q = 25 million barrels.
The corresponding price is:
P = 120 − 2(25) = 120 − 50 = $70 per barrel.
At this point, profit per unit is P − MC = $50, and total profit for the cartel can be computed as:
Profit = (Price − MC) × Quantity = $50 × 25 million = $1.25 billion.
Impact of Overproduction by 20%
When all members overproduce by 20%, the total quantity supplied increases from 25 million to:
Q' = 25 × 1.20 = 30 million barrels.
The new price, based on the demand function, is:
P' = 120 − 2(30) = 120 − 60 = $60 per barrel.
The marginal revenue at Q = 30 is:
MR' = 120 − 4(30) = 120 − 120 = $0.
This suggests that profit-maximizing production should not have exceeded 25 million; however, with overproduction, the price declines, reducing per-unit profit.
The total revenue now becomes:
TR' = $60 × 30 million = $1.8 billion.
The total costs are:
Cost = MC × Q' = $20 × 30 million = $600 million.
The total profit after overproduction is:
Profit' = Total revenue − Total costs = $1.8 billion − $600 million = $1.2 billion.
This is a decline from the original profit of $1.25 billion, indicating the overproduction reduces overall cartel profit by approximately $50 million.
Hence, collectively overproducing by 20% erodes total profit by around 4%, illustrating the negative impact of deviation from the cartel’s optimal output level.
Impact of a Single Member Increasing Production from 2 to 3 Million Barrels
Consider a member currently producing 2 million barrels, contributing to the total quota. If that country increases its output to 3 million barrels, the overall supply in the market increases marginally, affecting both the cheating country and the cartel as a whole.
Initially, at the quota level, the price is $70 per barrel, and profit for the cheating country is:
Revenue = Price × Quantity = $70 × 2 million = $140 million.
Cost = $20 × 2 million = $40 million.
Profit = Revenue − Cost = $100 million.
When the country cheats and produces an additional million barrels, its individual production is now 3 million barrels. The new total supply Q' becomes:
Q' = (original quota − 2 million) + 3 million = (remaining quota) + 3 million, but for simplicity, assume total market supply increases by 1 million barrels due to this clandestine increase.
The resulting market price drops to:
P' = 120 − 2(Q + 1) = 120 − 2(25 + 1) = 120 − 52 = $68 per barrel.
Revenues for the cheating country become:
Revenue' = $68 × 3 million = $204 million.
Corresponding costs are:
Cost' = $20 × 3 million = $60 million.
Profit' = $144 million, indicating a reduction in profit compared to the initial $100 million, but the country benefits from the additional production.
As for the cartel, the increased supply causes the overall market price to decline, reducing the cartels' total revenue.
The cartel’s total revenue decreases from $70 × 25 million = $1.75 billion to approximately $68 × 25 million = $1.7 billion, a loss of about $50 million, while the cost structure remains proportionate.
The cheating country benefits from additional barrels at a slightly reduced price, gaining increased absolute revenue at a marginally lower profit margin per barrel. However, this unilateral move damages the cartel’s collective profit, incentivizing future breaches and destabilizing the cooperation.
Conclusion
The analysis demonstrates that deviations from the cartel’s optimal production levels, whether through collective overproduction or unilateral cheating, tend to erode overall profits and destabilize the market equilibrium. Overproduction by 20% reduces total profit marginally, emphasizing the importance of firm adherence to quota agreements. Similarly, individual members seeking short-term gains through increased production can harm the cartel’s collective profitability, highlighting the inherent tension between individual incentives and collective goals within OPEC. These dynamics underscore the challenges in maintaining cartel stability and maximizing long-term profits in the face of individual incentives to cheat.
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