Microeconomics
21st Edition
ISBN: 9781259915727
Author: Campbell R. McConnell, Stanley L. Brue, Sean Masaki Flynn Dr.
Publisher: McGraw-Hill Education
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Question
Chapter 3.A, Problem 3ADQ
To determine
The current and past price of gasoline.
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Suppose you observe the price and quantity demanded of a good at two dates. There is a large
percentage change in price but only a small percentage change in quantity. Which is the most likely
price elasticity of demand?
O 1.5
O 1
O 0.5
ADVANCED 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 =
units
Consider the table below. Assuming the law of demand holds, the cell labeled "?" could be which of the following quantities?
Price of a
Quantity of movies
movie
Demanded
$15
155
$17
?
O 155
163
157
171
O 143
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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- 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 81arrow_forwardADVANCED 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 unitsarrow_forwardQuantity Demanded 6 7 8 9 10 11 12 Price $8 7 6 5 4 3 2 Refer to the above table. If demand decreased by 4 units at each price and supply decreased by 2 units at each price, what would the new equilibrium price and quantity be? Multiple Choice O $6 and 6 units $5 and 5 units O $4 and 6 units Quantity Supplied 10 9 8 7 6 5 4 $7 and 7 unitsarrow_forward
- Let (inverse) demand be Pb = 113 - 4 Qb and (inverse) supply be Pv = 27. What quantity are sellers willing to sell at price below $ 27 per unit? Answer: your answer Submit Price ($) $120 $100 $80 $60 $40 $ 20 $0 0 LO 5 Demand e Quantity 10 Supply 15 Quantity Eqm 20 25 30arrow_forwardRefer to the supply and demand curve diagram below, if supply decrease by 25 units at each price level, what is the new equilibirum price and quantity? 2$ 10 9. 8. 6. 4. 1. 10 20 30 40 50 60 70 O A. P-$6 Q = 5 O B. P=$7 Q = 25 O C. P=$8 Q = 15 O D. P=$6 Q = 30arrow_forwardSuppose that the inverse demand for eggs is P = 12 -0.010d, and the inverse supply of eggs is P = 2 +0.01Q5, where Q = million eggs and P= USD/egg. The market-clearing price is equal to ________(USD/egg), and the market clearing quantity is equal to (m eggs). O 7,500 6,400 O 0.5, 250 O4, 200arrow_forward
- Suppose an economic boom causes incomes to increase and, at the same time, drives up wages for the sales representatives who work for cell phone companies. Assume that smartphones are a normal good. This will cause the: O price of cell phones and the equilibrium quantity to rise. O price of cell phones to rise, but the change in the equilibrium quantity is unclear and depends on whether the shift in demand is larger or smaller than the shift in supply. O price of cell phones and the equilibrium quantity to fall. O quantity of cell phones to rise, but the change in the equilibrium price is unclear and depends on whether the shift in demand is larger or smaller than the shift in supply.arrow_forwardADVANCED 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_forward5. Show how a change in the price of one good affects the supply of another. Use the graph to show how an increase in the price of organic onions would shift the demand curve, supply curve, or both curves in the market for tomatoes. Assume that onions and tomatoes are neither complements nor substitutes. Market for Tomatoes 10 9. Supply 8 7 4 Demand 1 4 8 10 12 14 16 18 20 Quantity (Ibs) LO 3. 2. Price ($)arrow_forward
- 225323333 $8 $7 $1 Demand Curve for Cupcakes 12 3 D 5 6 7 8 Look at the demand curve above. Which of the following is NOT true in regards to the demand curve? O a Demand Curve will always slope down to the right O at a price of $1 there is a demand for 8 cupcakes O price is always drawn on the "X" axis O the graph only shows the relationship between price and the Quantity demand at that price O a demand curve is a graphic representation of a demand schedulearrow_forwardAnswer the next question on the basis of the following demand schedule. Price $6 5 4 3 2 1 Quantity Demanded O 1 O 2 O 3 4 5 The price elasticity of demand is unit-elastic (based on the midpoint formula) Multiple Choice 6 LO throughout the entire price range because the slope of the demand curve is constant. in the $4 to $3 price range only. over the entire $3 to $1 price range. over the entire $6 to $4 price rangearrow_forwardAssume that the price of commodity Y rises by 13.5% and the cross price elasticity of demand with commodity X is 1.35. According to this situation, commodity X is O a. not related to commodity Y as the exact price of commodity Y has not been specified b. a complementary product as cross price elasticity of demand is positive O c. a substitute as cross price elasticity of demand is negative d.a substitute as cross price elasticity of demand is positivearrow_forward
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