Unit 3 - Practice Quiz

ECO113 50 Questions
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1 Which of the following market structures is characterized by a very large number of firms selling a homogeneous product?

A. Monopoly
B. Perfect Competition
C. Oligopoly
D. Monopolistic Competition

2 In a perfectly competitive market, the demand curve facing an individual firm is:

A. Perfectly inelastic (vertical)
B. Perfectly elastic (horizontal)
C. Downward sloping
D. Kinked

3 The profit maximization condition for a firm in any market structure is:

A.
B.
C.
D. and MC is rising

4 Under perfect competition, what is the relationship between Average Revenue (), Marginal Revenue (), and Price ()?

A.
B.
C.
D.

5 In the short run, a perfectly competitive firm should shut down if:

A. Price is less than Average Variable Cost ()
B. Price is less than Average Total Cost ()
C. Price is less than Marginal Cost ()
D. Total Revenue is less than Total Cost

6 Which market structure is characterized by a single seller selling a unique product with no close substitutes?

A. Perfect Competition
B. Oligopoly
C. Monopoly
D. Monopolistic Competition

7 In a monopoly, the relationship between Price () and Marginal Revenue () is:

A.
B.
C.
D.

8 The Lerner Index of monopoly power is calculated as:

A.
B.
C.
D.

9 Which of the following is a characteristic of Monopolistic Competition?

A. Homogeneous products
B. High barriers to entry
C. Single seller
D. Product differentiation

10 In the long run, firms in Monopolistic Competition earn:

A. Economic losses
B. Infinite profits
C. Normal profits only
D. Supernormal profits

11 The concept of Excess Capacity is associated with which market structure?

A. Perfect Competition
B. Monopolistic Competition
C. Monopsony
D. Monopoly

12 Which market structure is defined by a few large sellers dominating the industry?

A. Perfect Competition
B. Monopoly
C. Oligopoly
D. Duopsony

13 The Kinked Demand Curve hypothesis in Oligopoly is used to explain:

A. Price flexibility
B. Price rigidity (stickiness)
C. Cartel formation
D. Predatory pricing

14 In the Kinked Demand Curve model, the segment of the demand curve above the current price is:

A. Perfectly inelastic
B. Relatively elastic
C. Unitary elastic
D. Relatively inelastic

15 A Cartel (e.g., OPEC) is most likely to form in which market structure?

A. Monopoly
B. Monopolistic Competition
C. Oligopoly
D. Perfect Competition

16 Which pricing strategy involves charging a very high initial price for a new, innovative product and lowering it over time?

A. Price Skimming
B. Limit Pricing
C. Predatory Pricing
D. Penetration Pricing

17 Third-degree price discrimination occurs when a monopolist charges different prices based on:

A. Individual negotiation
B. Cost of production differences
C. Different market segments with different price elasticities
D. Quantity purchased

18 Allocative efficiency is achieved when:

A.
B.
C.
D.

19 Which market structure achieves both productive and allocative efficiency in the long run?

A. Monopolistic Competition
B. Monopoly
C. Oligopoly
D. Perfect Competition

20 What is the shape of the Total Revenue () curve under Perfect Competition?

A. Inverted U-shape
B. Straight upward sloping line from the origin
C. Vertical line
D. Horizontal line

21 The deadweight loss in a monopoly arises because:

A. The monopolist incurs high advertising costs
B. The monopolist charges a price equal to Marginal Cost
C. The monopolist produces less than the socially optimal level
D. The monopolist produces more than the socially optimal level

22 A Natural Monopoly generally arises due to:

A. Control of resources
B. Significant economies of scale over a large range of output
C. Legal restrictions
D. Collusion among firms

23 In Game Theory (Oligopoly), a Nash Equilibrium is reached when:

A. Firms continuously change prices
B. All firms cooperate to maximize joint profits
C. No player has an incentive to deviate from their strategy, given the opponent's strategy
D. One firm dominates the entire market

24 Selling costs (advertising expenses) are most significant in:

A. Monopolistic Competition
B. Perfect Competition
C. Perfect Oligopsony
D. Monopoly

25 The supply curve of a monopolist:

A. Is the rising portion of the AC curve
B. Is the rising portion of the MC curve
C. Is the same as the Demand curve
D. Does not exist

26 Which model of oligopoly assumes that firms compete on output (quantity) rather than price?

A. Cournot Model
B. Edgeworth Model
C. Sweezy Model
D. Bertrand Model

27 In the long run, the price () in Monopolistic Competition is:

A.
B. and
C.
D.

28 The practice of charging a low price to drive competitors out of the market is known as:

A. Peak-load Pricing
B. Penetration Pricing
C. Predatory Pricing
D. Limit Pricing

29 Under perfect competition, the industry demand curve is:

A. Upward sloping
B. Perfectly elastic
C. Perfectly inelastic
D. Downward sloping

30 Cross-elasticity of demand for the product of a monopolist is:

A. Negative
B. Zero or very low
C. Very high
D. Infinity

31 Which of the following is NOT a barrier to entry?

A. Ownership of a key resource
B. U-shaped average cost curve
C. Patents and copyrights
D. Economies of scale

32 In the Bertrand model of oligopoly, firms compete by setting:

A. Quality standards
B. Advertising budgets
C. Quantities
D. Prices

33 What is Penetration Pricing?

A. Setting a high price to signal quality
B. Charging different prices to different customers
C. Setting a low initial price to gain market share quickly
D. Pricing based on the competitor's price

34 Under which market structure is the firm a 'Price Maker'?

A. Perfect Competition and Monopolistic Competition
B. Monopoly, Oligopoly, and Monopolistic Competition
C. None of the above
D. Perfect Competition only

35 If a monopolist engages in First-Degree Price Discrimination, the Consumer Surplus will be:

A. Zero
B. Equal to Producer Surplus
C. Maximized
D. Unchanged

36 Barometric Price Leadership occurs when:

A. The government sets the price
B. A firm that best reflects market conditions sets the price
C. A firm with the lowest cost sets the price
D. The largest firm sets the price

37 The break-even point for a firm occurs when:

A.
B.
C.
D.

38 Which curve cuts the Average Cost (AC) curve at its minimum point?

A. The Average Variable Cost (AVC) Curve
B. The Demand Curve
C. The Marginal Cost (MC) Curve
D. The Marginal Revenue (MR) Curve

39 In the Prisoner's Dilemma matrix commonly applied to Oligopolies, the dominant strategy for both firms usually leads to:

A. Zero profit for both
B. A suboptimal outcome for both (non-cooperation)
C. One firm winning and one losing
D. The best possible joint outcome (cooperation)

40 Peak-load pricing is a strategy often used by:

A. Wheat farmers
B. Toothpaste manufacturers
C. Utilities (e.g., electricity providers)
D. Retail clothing stores

41 If the demand curve is linear and downward sloping, at the midpoint of the curve, the price elasticity of demand is:

A.
B.
C.
D. $1$ (Unitary)

42 Monopsony is a market condition where there is:

A. Few sellers
B. Few buyers
C. One buyer
D. One seller

43 The assumption of 'Product Homogeneity' implies that:

A. Buyers prefer products from specific sellers
B. Products are distinct but serve the same purpose
C. Products are identical in the eyes of the consumer
D. Sellers can charge different prices

44 In a Sweezy Oligopoly model (Kinked Demand), the Marginal Revenue curve has a:

A. Upward slope
B. Vertical gap (discontinuity)
C. Constant value
D. Horizontal segment

45 Cost-Plus Pricing (Mark-up Pricing) is determined by:

A.
B.
C.
D.

46 Which of the following creates a Deadweight Loss?

A. Monopoly charging a single price
B. None of the above
C. Perfect Competition
D. First-degree Price Discrimination

47 Interdependence between firms is the hallmark of:

A. Monopolistic Competition
B. Perfect Competition
C. Monopoly
D. Oligopoly

48 If a perfect competitor increases their price above the market price, their Total Revenue will:

A. Remain the same
B. Increase slightly
C. Double
D. Fall to zero

49 Two-part tariff pricing involves:

A. Charging two different customers different prices
B. Bundling two products together
C. Charging a fixed lump-sum fee plus a per-unit usage fee
D. Charging a high price in the morning and low in the evening

50 In the long run, the supply curve for a Constant Cost Industry in perfect competition is:

A. Horizontal (Perfectly elastic)
B. Vertical
C. Upward sloping
D. Downward sloping