Principles of Economics
Principles of Economics
7th Edition
ISBN: 9781305156043
Author: N. Gregory Mankiw
Publisher: Cengage Learning US
bartleby

Concept explainers

Question
Book Icon
Chapter 7, Problem 9PA

Subpart (a):

To determine

The impact of falling prices of computers and its impact on typewriters.

Subpart (a):

Expert Solution
Check Mark

Explanation of Solution

When the cost of producing computers falls, the supply of the computers in the economy will increase. This will lead to a rightward shift in the supply curve of the computers. As a result of this rightward shift, the price of the computers will fall and the quantity demanded will increase. This can be illustrated as follows:

Principles of Economics, Chapter 7, Problem 9PA , additional homework tip  1

From the above graph, it can be identified that when there is a rightward shift in the supply curve for the computers due to the fall in the cost of producing the computers, there will be a new equilibrium and this will be determined below the existing one. As a result of this, the price will fall from P1 to P2 and the quantity will rise from Q1 to Q2.

Before the shift in the supply curve, the equilibrium price and quantity were P1 and Q1. The consumer surplus at this point was the area of A as denoted in the diagram. However, after the fall in the production cost of computers, the consumer surplus increased, and thereby increasing the area to B+C+D. This implies that the consumer surplus increases from area of A to area of A+B+C+D.

Before the shift in the supply curve towards the right due to the fall in the cost of producing computer, the producer surplus was the area of B+E. The area of B declined from the producer surplus and became the consumer surplus. After the shift in the supply curve, the producer surplus became the area of E+F+G. The change in the producer surplus is by the area of F+G minus B. Thus, when the area of F+G is higher than the area of B, the producer surplus changes positively or vice versa.

The quantity demanded increases from Q1 to Q2, which means that more quantity is sold and it increases the producer surplus, but at the same time the fall in the price reduces the producer surplus. Thus, the total change in the total surplus can be calculated by summating the changes in the consumer surplus and the producer surplus as follows:

Change in Total surplus=Change in Consumer surplus+Change in Producer surplus=C+D+F+G

Thus, the total surplus increases by the area of C+D+F+G.

Economics Concept Introduction

Concept introduction:

Consumer surplus: It is the difference between the highest willing price of the consumer and the actual price that the consumer pays.

Producer surplus: It is the difference between the minimum accepted price for the producer and the actual price received by the producer.

Equilibrium price: It is the market price determined by equating the supply to the demand. At this equilibrium point, the supply will be equal to the demand and there will be no excess demand or excess supply in an economy. Thus, the economy will be at equilibrium.

Subpart (b):

To determine

The impact of falling prices of computers and its impact on typewriters.

Subpart (b):

Expert Solution
Check Mark

Explanation of Solution

Typewriters and the computers are the substitutes and the fall in the cost of production of the computers implies a fall in the price of computers as explained above. When the computers become cheaper, people will substitute the typewriters with the computers. As a result, there will be a decline in the demand for typewriters and this leads to the downward or leftward shift in the demand curve for the typewriters. This can be illustrated as follows:

Principles of Economics, Chapter 7, Problem 9PA , additional homework tip  2

From the above graph of the typewriter market, it can be easily identified that the fall in the production cost of the computers leads to substitution of typewriters with computers. As a result, the demand curve for the typewriter shifts leftward and it results in the lower new equilibrium price of typewriters but lower quantity demanded of typewriters.

Before the shift in the demand curve, the consumer surplus was the area of A+B and after the shift in the demand curve, the consumer surplus changes to area of A+C. Thus, the consumer surplus changes by C - B.

The producer surplus prior to the shift in the demand curve was area of C+E+D. It changes only to the area of D. Thus, the typewriter producers face a loss of surplus by the area of C+D. Hence, the technological advancement is harmful to the typewriter producers because it reduces price, quantity demanded of typewriter and the producer surplus.

Economics Concept Introduction

Concept introduction:

Consumer surplus: It is the difference between the highest willing price of the consumer and the actual price that the consumer pays.

Producer surplus: It is the difference between the minimum accepted price for the producer and the actual price received by the producer.

Equilibrium price: It is the market price determined by equating the supply to the demand. At this equilibrium point, the supply will be equal to the demand and there will be no excess demand or excess supply in an economy. Thus, the economy will be at equilibrium.

Subpart (c):

To determine

The impact of falling prices of computers and its impact on typewriters.

Subpart (c):

Expert Solution
Check Mark

Explanation of Solution

Software and the computers are the complementary goods and they are correlated positively. When the demand for computers increases, it will lead to an increase in the demand for the software. Thus, the market for the software will witness a shift in the demand curve for the software, which will shift the demand curve towards the right. As a result, the price of the software will increase and the quantity demanded will also increase. This can be illustrated as follows:

Principles of Economics, Chapter 7, Problem 9PA , additional homework tip  3

When the demand for the software increases, it will lead to a rightward shift in the demand curve for the software. Thus, as a result of the rightward shift in the demand curve, the D2 will form and it will intersect with the supply curve at a point higher than the existing point to determine new higher equilibrium price and quantity demanded. Thus, the price becomes P2 and the quantity becomes Q2.

Prior to the shift in the demand curve, the consumer surplus was area of B+C and it changes to area of A+B. Thus, the net change in the consumer surplus is by the area of A - C. Similarly, the producer surplus was the area of E before the shift in the demand. It increased to area of C+D+E, where the net increase in the producer surplus is by the area of C+D.

Thus, with the technological advancement, the software producers will be happy because it increases the price of the software, quantity demanded of the software along with the producer surplus.

Economics Concept Introduction

Concept introduction:

Consumer surplus: It is the difference between the highest willing price of the consumer and the actual price that the consumer pays.

Producer surplus: It is the difference between the minimum accepted price for the producer and the actual price received by the producer.

Equilibrium price: It is the market price determined by equating the supply to the demand. At this equilibrium point, the supply will be equal to the demand and there will be no excess demand or excess supply in an economy. Thus, the economy will be at equilibrium.

Subpart (d):

To determine

The impact of falling prices of computers and its impact on typewriters.

Subpart (d):

Expert Solution
Check Mark

Explanation of Solution

This analysis helps us to understand how the computer-associated technological markets develop, when there is a technological advancement in the economy. When there is a technological advancement that reduces the cost of producing computers, it will lead to the development of complementary markets such as software. Bill Gates, the founder of Microsoft software is world famous example. His company produces different types of software required for the computers and the analysis helps us to explain how Bill Gates emerged as one of the richest people in the world.

Economics Concept Introduction

Concept introduction:

Consumer surplus: It is the difference between the highest willing price of the consumer and the actual price that the consumer pays.

Producer surplus: It is the difference between the minimum accepted price for the producer and the actual price received by the producer.

Equilibrium price: It is the market price determined by equating the supply to the demand. At this equilibrium point, the supply will be equal to the demand and there will be no excess demand or excess supply in an economy. Thus, the economy will be at equilibrium.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
1. After the reopening of borders with mainland China following the COVID-19 lockdown, residents living near the border now have the option to shop for food on either side. In Hong Kong, the cost of food is at its listed price, while across the border in mainland China, the price is only half that of Hong Kong's. A recent report indicates a decline in food sales in Hong Kong post-reopening. ** Diagrams need not be to scale; Focus on accurately representing the relevant concepts and relationships rather than the exact proportions. (a) Using a diagram, explain why Hong Kong's food sales might have dropped after the border reopening. Assume that consumers are indifferent between purchasing food in Hong Kong or mainland China, and therefore, their indifference curves have a slope of one like below. Additionally, consider that there are no transport costs and the daily food budget for consumers is identical whether they shop in Hong Kong or mainland China. I 3. 14 (b) In response to the…
2. Health Food Company is a well-known global brand that specializes in healthy and organic food products. One of their main products is organic chicken, which they source from small farmers in the area. Health Food Company is the sole buyer of organic chicken in the market. (a) In the context of the organic chicken industry, what type of market structure is Health Food Company operating in? (b) Using a diagram, explain how the identified market structure affects the input pricing and output decisions of Health Food Company. Specifically, include the relevant curves and any key points such as the profit-maximizing price and quantity. () (c) How can encouraging small chicken farmers to form bargaining associations help improve their trade terms? Explain how this works by drawing on the graph in answer (b) to illustrate your answer.
2. Suppose that a farmer has two ways to produce his crop. He can use a low-polluting technology with the marginal cost curve MCL or a high polluting technology with the marginal cost curve MCH. If the farmer uses the high-polluting technology, for each unit of quantity produced, one unit of pollution is also produced. Pollution causes pollution damages that are valued at $E per unit. The good produced can be sold in the market for $P per unit. P 1 MCH 0 Q₁ MCL Q2 E a. b. C. If there are no restrictions on the firm's choices, which technology will the farmer use and what quantity will he produce? Explain, referring to the area identified in the figure Given your response in part a, is it socially efficient for there to be no restriction on production? Explain, referring to the area identified in the figure If the government restricts production to Q1, what technology would the farmer choose? Would a socially efficient outcome be achieved? Explain, referring to the area identified in…
Knowledge Booster
Background pattern image
Economics
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, economics and related others by exploring similar questions and additional content below.
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Economics (MindTap Course List)
Economics
ISBN:9781337617383
Author:Roger A. Arnold
Publisher:Cengage Learning
Text book image
Macroeconomics
Economics
ISBN:9781337617390
Author:Roger A. Arnold
Publisher:Cengage Learning
Text book image
Microeconomics
Economics
ISBN:9781337617406
Author:Roger A. Arnold
Publisher:Cengage Learning
Text book image
Exploring Economics
Economics
ISBN:9781544336329
Author:Robert L. Sexton
Publisher:SAGE Publications, Inc
Text book image
Managerial Economics: A Problem Solving Approach
Economics
ISBN:9781337106665
Author:Luke M. Froeb, Brian T. McCann, Michael R. Ward, Mike Shor
Publisher:Cengage Learning
Text book image
Economics Today and Tomorrow, Student Edition
Economics
ISBN:9780078747663
Author:McGraw-Hill
Publisher:Glencoe/McGraw-Hill School Pub Co