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ECON 101 Chapter Notes - Chapter 9: Opportunity Cost, Economic Equilibrium, Demand Curve

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School
UBC
Department
Economics
Course
ECON 101
Professor
Robert Gateman

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ECON 101 Full Course Notes
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ECON 101 Full Course Notes
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Document Summary

Market structure: the features that may affect the behaviour and performance of the firms in a market: number of firms, types of products sold etc. Competitive structure: when its firms have little or no market power: more market power a firm has, the less competitive the market structure. When the market is so competitive, the firm has zero market power: firms must accept the market prices set by the forces of demand and supply markets. Perfectly competitive: no need to compete with other firms because no firm has market power: one firm"s ability to sell a product does not depend on the actions of another firm. Firms that do compete with each other do not operate in perfectly competitive markets. A firm"s output to maximize profits depends on demand for the product and production costs: this where the demand curve for an industry meets the demand curve for a firm.

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Related Questions

1. Which of the following is a firm in a perfectly competitive market?

1) a local corn farmer

2) the Tennessee Valley Authority, a large electricity producer that serves areas of five states

3) pizza delivery

4) a grocery store

5) Kate Spade, fashion designer

2. Compare a perfectly competitive market with a monopolistically competitive market.

The markup the firm charges in a monopolistically competitive market is ___________ the markup charged by a firm in a perfectly competitive market.

The firm's excess capacity in a monopolistically competitive market is ___________ the firm's excess capacity in a firm in a perfectly competitive market.

The efficiency of a monopolistically competitive market is ___________ the efficiency of a perfectly competitive market.

  1)greater than; less than; greater than
  2)greater than; greater than; less than
  3)less than; less than; greater than
  4)greater than; less than; equal to

3. In the long run, how is price related to marginal cost in both perfect competition and in monopolistic competition?

  1) The long-run price is driven to marginal cost in both competitive markets and markets that are monopolistically competitive.
  2 )Both markets can charge more than the marginal cost in the long run because products are differentiated in both markets.
  3) Products are identical in perfectly competitive markets, so a firm must charge less than the marginal cost in order to differentiate itself. This is not true in monopolistically competitive markets where firms can charge more than marginal cost.
  4) Because monopolistically competitive firms have market power, they set a price higher than marginal cost, while competitive firms cannot.

4. Titleist has an advertising slogan is "The #1 ball in golf"€ Consumers can also buy generic golf balls. The manufacturers of generic golf balls do not engage in any advertising. Assume that the average total cost of producing Titleist and generic golf balls is the same.

Which producer has a stronger incentive to maintain quality control in the production of golf balls?

  1) Titleist
  2) a manufacturer of generic golf balls

A. A competitive firm

  1. can consider only its location in setting the price.
  2. must base its competitive price on product differentiation.
  3. has the ability to set its own price.
  4. must accept the price determined by the intersection of the market supply and demand curves.
  5. has no supply curve.

B. If a firm is making an economic profit, then

  1. the factors of production are being paid their opportunity costs.
  2. there will be no change in the number of firms if the industry is perfectly competitive.
  3. the factors of production are being paid less than their opportunity costs.
  4. the factors of production are being paid more than their opportunity costs.
  5. the firm will exit the industry

C. Along a downward-sloping monopoly demand curve,

  1. marginal revenue is greater than price.
  2. the elasticity of demand is constant.
  3. marginal revenue decreases when the price decreases.
  4. marginal revenue is equal to zero when the price is equal to zero

D. If, in the short run, a perfectly competitive firm is producing at a point where the total cost is greater than total revenue, then the firm should

  1. shut down because economic profits are negative.
  2. continue to produce as long as P > AVC.
  3. continue to produce because accounting profits are positive.
  4. set a higher price for its output.
  5. set a lower price for its output

E. For a perfectly competitive firm, the demand curve is

  1. the marginal revenue curve.
  2. perfectly inelastic.
  3. always equal to marginal cost.
  4. the same as the market demand curve

F. A firm in a(n) industry will have the most elastic demand curve

  1. monopolistic
  2. oligopolistic
  3. monopolistically competitive
  4. perfectly competitive

G. If the demand curve of a monopolist is in the inelastic range, then

  1. total revenue will fall if the price increases.
  2. total revenue will be unchanged if the price increases.
  3. total revenue will rise if the price increases.
  4. the total supply will increase by an equal amount if demand increases.
  5. the price will be unchanged if total revenue increases

H. Monopolistic competition and oligopoly are examples of

  1. monopoly.
  2. perfect competition.
  3. theories of consumer behavior.
  4. imperfect competition.
  5. the extreme cases on the market structure continuum

I. Under which market structure do firms face the flattest (most elastic) demand curve?

  1. perfect competition
  2. monopolistic competition
  3. oligopoly
  4. monopoly

J. At the point of long-run equilibrium for a perfectly competitive firm,

  1. economic profits are zero.
  2. TR > TC.
  3. TR < TC.
  4. P = AVC.
  5. normal profits are zero.

Watch this video on Porter's Five Forces:

Link: https://hbr.org/video/3590615226001/ the-explainer-porters-five-forces

a. Discuss each of Porter's Five Forces within the context of the four types of markets discussed in class: perfect competition, monopoly, monopolistic competition, and oligopoly.

b. In the interview of Michael Porter assigned from last time, he discusses the concept of "disruptive technologies". Within the context of market competition and industry structure, what should managers be aware of in industries that are experiencing a disruptive technology?

Five Forces Summary:

What are 'Porter's 5 Forces'

Porter's Five Forces model, named after Michael E. Porter, identifies and analyzes five competitive forces that shape every industry, and helps determine an industry's weaknesses and strengths. These forces are:

1. Competition in the industry;

2. Potential of new entrants into the industry;

3. Power of suppliers;

4. Power of customers;

5. Threat of substitute products.

Frequently used to identify an industry's structure to determine corporate strategy, Porter's model can be applied to any segment of the economy to search for profitability and attractiveness.

Breaking down 'Porter's 5 Forces'

Porter's Five Forces is a model of analysis that helps to explain why different industries are able to sustain different levels of profitability. This model was originally published in Porter's book, "Competitive Strategy: Techniques for Analyzing Industries and Competitors" in 1980. The model is widely used, worldwide, to analyze the industry structure of a company as well as its corporate strategy. Porter identified five undeniable forces that play a part in shaping every market and industry in the world. The forces are frequently used to measure competition intensity, attractiveness, and profitability of an industry or market.

Competition in the industry

The importance of this force is the number of competitors and their ability to threaten a company. The larger the number of competitors, along with the number of equivalent products and services they offer, dictates the power of a company. Suppliers and buyers seek out a company's competition if they are unable to receive a suitable deal.

Potential of new entrants into an industry

A company's power is also affected by the force of new entrants into its market. The less money and time it costs for a competitor to enter a company's market and be an effective competitor, the more a company's position may be significantly weakened.

Power of suppliers

This force addresses how easily suppliers can drive up the price of goods and services. It is affected by the number of suppliers of key aspects of a good or service, how unique these aspects are, and how much it would cost a company to switch from one supplier to another. The fewer number of suppliers and the more a company depends upon a supplier, the more power a supplier holds.

Power of customers

This specifically deals with the ability customers have to drive prices down. It is affected by how many buyers, or customers, a company has, how significant each customer is, and how much it would cost a customer to switch from one company to another. The smaller and more powerful a client base, the more power it holds.

Threat of substitutes

Competitor substitutions that can be used in place of a company's products or services pose a threat. For example, if customers rely on a company to provide a tool or service that can be substituted with another tool or service or by performing the task manually, and this substitution is fairly easy and of low cost, a company's power can be weakened.