Microeconomics
21st Edition
ISBN: 9781259915727
Author: Campbell R. McConnell, Stanley L. Brue, Sean Masaki Flynn Dr.
Publisher: McGraw-Hill Education
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Chapter 3, Problem 6P
To determine
Equilibrium price and quantity.
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ADVANCED ANALYSIS Assume that demand for a commodity is represented by the equation
P = 100-3Qd-
Supply is represented by the equation
P= -10 + 3Q,,
where Qd and Qs are quantity demanded and quantity supplied, respectively, and Pis price.
Instructions: Round your answer for price to 2 decimal places and enter your answer for quantity as a whole number.
Using the equilibrium condition Qs Qd solve the equations to determine equilibrium price and equilibrium quantity.
Equilibrium price = $ 50
Equilibrium quantity = 20
units
3. Refer to the expanded table below from review question 8.
LO3.4
a. What is the equilibrium price? At what price is there nei-
ther a shortage nor a surplus? Fill in the surplus-shortage
column and use it to confirm your answers.
b. Graph the demand for wheat and the supply of wheat. Be
sure to label the axes of your graph correctly. Label equi-
librium price Pand equilibrium quantity Q.
c. How big is the surplus or shortage at $3.40? At $4.90?
How big a surplus or shortage results if the price is 60
cents higher than the equilibrium price? 30 cents lower
than the equilibrium price?
Thousands
of Bushels
Surplus (+)
or
Shortage (-)
Thousands
Price per
Bushel
of Bushels
Supplied
Demanded
85
$3.40
72
80
3.70
73
75
4.00
75
70
4.30
77
65
4.60
79
60
4.90
81
The demand for commodity X is represented by the equation P = 10 - 0.3Q and supply by the equation P=2+
0.2Q.
Refer to the given information. The equilibrium quantity is:
O 10.
O 20.
O 15.
O 30.
16.
O O O OO
Chapter 3 Solutions
Microeconomics
Ch. 3.6 - Prob. 1QQCh. 3.6 - Prob. 2QQCh. 3.6 - Prob. 3QQCh. 3.6 - Prob. 4QQCh. 3.A - Prob. 1ADQCh. 3.A - Prob. 2ADQCh. 3.A - Prob. 3ADQCh. 3.A - Prob. 4ADQCh. 3.A - Prob. 5ADQCh. 3.A - Prob. 6ADQ
Ch. 3.A - Prob. 7ADQCh. 3.A - Prob. 1ARQCh. 3.A - Prob. 2ARQCh. 3.A - Prob. 3ARQCh. 3.A - Prob. 4ARQCh. 3.A - Prob. 5ARQCh. 3.A - Prob. 6ARQCh. 3.A - Prob. 1APCh. 3.A - Prob. 2APCh. 3.A - Prob. 3APCh. 3 - Prob. 1DQCh. 3 - Prob. 2DQCh. 3 - Prob. 3DQCh. 3 - Prob. 4DQCh. 3 - Prob. 5DQCh. 3 - Prob. 6DQCh. 3 - Prob. 7DQCh. 3 - Prob. 8DQCh. 3 - Prob. 1RQCh. 3 - Prob. 2RQCh. 3 - Prob. 3RQCh. 3 - Prob. 4RQCh. 3 - Prob. 5RQCh. 3 - Prob. 6RQCh. 3 - Prob. 7RQCh. 3 - Prob. 8RQCh. 3 - Prob. 9RQCh. 3 - Prob. 1PCh. 3 - Prob. 2PCh. 3 - Prob. 3PCh. 3 - Prob. 4PCh. 3 - Prob. 5PCh. 3 - Prob. 6PCh. 3 - Prob. 7P
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- ADVANCED ANALYSIS Assume that demand for a commodity is represented by the equation P=90−2Qd.P=90−2Qd.Supply is represented by the equation P=−5+3Qs,P=−5+3Qs,where Qd and Qs are quantity demanded and quantity supplied, respectively, and P is price.Instructions: Round your answer for price to 2 decimal places and enter your answer for quantity as a whole number. Using the equilibrium condition Qs = Qd, solve the equations to determine equilibrium price and equilibrium quantity. Equilibrium price = $ Equilibrium quantity = unitsarrow_forwardADVANCED ANALYSIS Assume that demand for a commodity is represented by the equation P = 80 – 2Qd. Supply is represented by the equation P = -20 + 2Qs, where Qgand Qg are quantity demanded and quantity supplied, respectively, and Pis price. Instructions: Round your answer for price to 2 decimal places and enter your answer for quantity as a whole number. Using the equilibrium condition Qs = Qd, solve the equations to determine equilibrium price and equilibrium quantity. Equilibrium price = $ Equilibrium quantity = unitsarrow_forwardADVANCED ANALYSIS Assume that demand for a commodity is represented by the equation P=80−2Qd.P=80−2Qd. Supply is represented by the equation P=−20+2Qs,P=−20+2Qs, where Qd and Qs are quantity demanded and quantity supplied, respectively, and P is price.Instructions: Round your answer for price to 2 decimal places and enter your answer for quantity as a whole number. Using the equilibrium condition Qs = Qd, solve the equations to determine equilibrium price and equilibrium quantity.arrow_forward
- ADVANCED ANALYSIS Assume that demand for a commodity is represented by the equation P = 20 – 2Qd. Supply is represented by the equation P = -5 + 3Qs, where Qgand Qs are quantity demanded and quantity supplied, respectively, and Pis price. Instructions: Round your answer for price to 2 decimal places and enter your answer for quantity as a whole number. Using the equilibrium condition Qs= Qd solve the equations to determine equilibrium price and equilibrium quantity. Equilibrium price = $ Equilibrium quantity = unitsarrow_forwardNote: Price (P) is on the vertical axis and quantity (Q) is on the horizontal axis. (? 40 35 30 25 20 15 10 + + 5 10 15 20 25 30 35 40 QUANTITY The slope of this line is PRICE LOarrow_forwardGasoline prices have been and will continue to be a major issue for the economy. From the start of the Covid-19 pandemic up to the present day, gasoline prices have been in the news. ---What has happened to the price of gasoline over the past 12 months? Be specific and include actual prices in your answer. ---Discuss the recent changes in price from a supply and demand standpoint. Have the price changes been due to a change in supply, a change in demand, or both? Explain your answer. ---How did Covid-19 affected the market for gasoline? Which of the main influences of supply and demand do you think were responsible for the price changes? (See textbook pages 90-91 and 97-98.) Be specific and explain why and how the "main influences" you chose had an impact on the gasoline market.arrow_forward
- 4. How will each of the following changes in demand and/or supply affect equilibrium price and equilibrium quantity in a competitive market; that is, do price and quantity rise, fall, or remain unchanged, or are the answers indeterminate be- cause they depend on the magnitudes of the shifts? Use sup- ply and demand to verify your answers. LO3.5 a. Supply decreases and demand is constant. b. Demand decreases and supply is constant. c. Supply increases and demand is constant. d. Demand increases and supply increases. e. Demand increases and supply is constant. f. Supply increases and demand decreases.arrow_forwardQuestion 3 (CLO3): Answer the following questions based on figure given below 100 200 300 400 500 600 Quanity 1: Determine equilibrium price ( 2. Determine equilibrium quantity 3. If a maximum price of $8 is set, What disequilibrium situation results? Calculate. The price should increase or decrease to attain the equilibrium. 4. If a minimum price of $2 is set, What kind of disequilibrium situation results? Calculate. The price should increase or decrease to attain the equilibrium. Price (dollarsarrow_forwardssessment L 2.4.2 Test (CST): Microeconomics Question 5 of 20 The graph shows the supply and demand curves for a certain product, which has a current selling price of $400. The laws of supply and demand most support which conclusion about the product? Demand $500 Supply $400 $300 $200 $100 1,000 2,000 3,000 4,000 5,000 Quantity O A. The current selling price for the product is too high. O B. The current selling price for the product is the result of a surplus. O C. The current selling price for the product is too low. O D. The current selling price matches the product's equilibrium price. SUBMIT E PREVIOUS DELL Pricearrow_forward
- 27) Of the collection of supply and demand diagrams in Figure 2.2, which one shows the result of a decrease in the price of a substitute for a good? Figure 2 P" P FE Q*Q® Q Qº Figure 3 Figure 4 S P₁ P P₁ p. P Figure 1 Q" Q Figure 2.2 A) Figure 1 B) Figure 2 C) Figure 3 D) Figure 4 18 Q't lö 27)arrow_forwardFigure 5 below represents two different shifts that occurs in the market for potato chips. All of the shifts go from the curves labeled with a "1" to curves labeled with a "2". Assume that potato chips are an inferior good. Refer to the figure as you answer the questions that follow. P Shift 1 S2 S1 D1 Figure 5 Shift 2 S1 D1 D2arrow_forwardRefer to Exhibit 4-2. Exhibit 4-2 Price Supply D₁ Quantity D₂ If the supply curve shifts to the right, then which of the following is true? OD, results in the most decrease in the equilibrium price. D₁ results in the most increase in the equilibrium price. O D₂ results in the most decrease in the equilibrium price. O D₂ results in the most increase in the equilibrium price. O The change in the equilibrium price is the same for D, and D₂.arrow_forward
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