Economics · Unit 6
Market Structures and Price Determination
Exam-focused notes for Market Structures and Price Determination (Economics, ECO155): what the TU syllabus asks and how it has actually been tested, with 12 solved past questions from this unit.
What this unit covers
- Perfect competition characteristics and features
- Price and output determination under perfect competition short run
- Monopoly definition and features
- Price and output determination under monopoly
- Average revenue and marginal revenue under monopoly
- Monopolistic competition features and characteristics
- Price and output determination under monopolistic competition long run
- Centralized cartel definition and explanation
- Cartel legality and examples
Perfect competition characteristics and features
What is perfect competition? Discuss its characteristics and the process of price-output determination in the short run using marginal approaches.[10]
Perfect competition is a market structure characterized by a large number of firms producing homogeneous (identical) products, where no single firm can influence the market price. It represents an idealized market condition where price is determined by the ...
Full solved answer →Monopoly definition and features
Define monopoly. Discuss its key features and provide one real-world example. [5]
A monopoly is a market structure in which there is only one seller or producer of a particular good or service for which there are no close substitutes. The single firm has complete control over the supply and pricing of the product in the market. 1. Single...
Full solved answer →List out the features of monopoly? Explain the short run and long run equilibrium of a firm under monopolistic market?[10]
A monopoly market structure has the following key characteristics: 1. Single Seller: There is only one firm producing and selling the product in the market. 2. No Close Substitutes: The product has no close substitutes available to consumers, making it uniq...
Full solved answer →Monopolistic competition features and characteristics
What are the features of monopolistic competition market? How to determine price and output under it in long period of time?[10]
Monopolistic competition is a market structure with the following characteristics: - Many firms operate in the market, but not as many as in perfect competition - Each firm has a small market share - No single firm can significantly influence market price t...
Full solved answer →Price and output determination under perfect competition short run
What is perfect competition market? How price and output are determined under it?[10]
A perfect competition market is a market structure characterized by the following features: 1. Large number of buyers and sellers - So many firms exist that no single firm can influence market price through its individual actions 2. Homogeneous products - A...
Full solved answer →What is a perfect competition market? How the price and output are determined under it in the short run?[10]
A perfect competition market is a market structure characterized by the following features: 1. Large number of buyers and sellers - No single firm or buyer can influence market price 2. Homogeneous product - All firms produce identical products with no diff...
Full solved answer →Average revenue and marginal revenue under monopoly
Show the relationship between AR and MR under the monopoly market with the help of a table and figure. [5]
Average Revenue (AR): Revenue per unit of output sold = Total Revenue / Quantity = P (Price) Marginal Revenue (MR): Additional revenue earned from selling one more unit = Change in TR / Change in Q Q P (AR) TR MR --------------------- 1 10 10 - 2 9 18 8 3 8...
Full solved answer →Price and output determination under monopoly
Let the demand and cost functions are P = 12 - 0.4Q and C = 5 + 4Q + 0.6Q² respectively. Then find the equilibrium price, quantity, total revenue, total cost and total profit. [5]
- Demand function: $P = 12 - 0.4Q$ - Cost function: $C = 5 + 4Q + 0.6Q^2$ $$TR = P \cdot Q = (12 - 0.4Q)Q = 12Q - 0.4Q^2$$ $$MR = \frac{d(TR)}{dQ} = 12 - 0.8Q$$ $$MC = \frac{dC}{dQ} = 4 + 1.2Q$$ Set $MR = MC$: $$12 - 0.8Q = 4 + 1.2Q$$ $$8 = 2Q \implies Q = ...
Full solved answer →What is monopoly market? How price and output are determined under monopoly market?[10]
A monopoly market is a market structure characterized by: - Single seller: There is only one firm producing and selling a particular product or service - No close substitutes: The product has no close substitutes available in the market - High barriers to e...
Full solved answer →Demand and cost function faced by a firm is given as P = 12 - 0.4 Q and $C = 5 + 4Q + 0.6Q^2$. Find the equilibrium price, quantity, total revenue, total cost and total profit which maximizes profit of the firm. [5]
- Demand function: $P = 12 - 0.4Q$ - Cost function: $C = 5 + 4Q + 0.6Q^2$ $$TR = P \times Q = (12 - 0.4Q)Q = 12Q - 0.4Q^2$$ $$\pi = TR - C = (12Q - 0.4Q^2) - (5 + 4Q + 0.6Q^2)$$ $$\pi = 12Q - 0.4Q^2 - 5 - 4Q - 0.6Q^2 = -Q^2 + 8Q - 5$$ $$\frac{d\pi}{dQ} = -2...
Full solved answer →Centralized cartel definition and explanation
What is cartel? Why is it illegal? Give the examples of cartel. [5]
A cartel is a formal or informal agreement between competing firms in the same industry to coordinate their business activities in ways that reduce competition. Members of a cartel typically agree to: - Fix prices at artificially high levels - Divide market...
Full solved answer →Explain centralized cartel. [5]
A centralized cartel is a collusive arrangement among competing firms where a central authority or coordinating body makes decisions regarding pricing, production levels, market allocation, and other competitive variables on behalf of all member firms. 1. C...
Full solved answer →Make Unit 6 stick
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