Principles of Economics 2e
2nd Edition
ISBN: 9781947172364
Author: Steven A. Greenlaw; David Shapiro
Publisher: OpenStax
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Textbook Question
Chapter 3, Problem 50CTQ
Explain why voluntary Martians improve social welfare.
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Doug William, the owner of a corner store, estimates that the supply and demand for a specialized energy drinkcould be described by the following equations D : q=−25 p+345 , S : q=50 p−330,where p represents the price in dollars per case (each case contains 12 bottles), and q represents the number ofcases sold each week
(a) Determine the market equilibrium price and quantity.
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Graph Input Tool
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Market for Goods
25
Quantity
Demanded
(Units)
Demand Price
(Dollars per unit)
25.00
Demand
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0
15
5
45
20
50
QUANTITY (Units)
On the graph input tool, change the number found in the Quantity Demanded field to determine the prices that correspond to the production of 0, 10,
20, 25, 30, 40, and 50 units of output. Calculate the total revenue for each of these production levels. Then, on the following graph, use the green
points (triangle symbol) to plot the results.
630
567
A
504
Total Revenue
441
378
315
252
189
126
63
PRICE (Dollars per unit)
TOTAL REVENUE (Dollars)
50
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25
20
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10
5
0
10
25 30 35 40
0 +
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45 50
15 20 25 30 35
QUANTITY (Number of units)
Calculate the total revenue if the firm produces 10 versus 9 units. Then, calculate the marginal revenue of the 10th unit produced.
The marginal revenue of the 10th unit produced is $
Calculate the total revenue if the firm…
The following graph shows the demand curve for uff, a useful commodity produced on the planet Hermes. The Hermetian currency is the yen. The graph input tool also shows how demand for uff is affected by changes in the average income of Hermetians, as well as the prices of tulg and snick, two other related goods available on the planet.
Suppose that the price of a gram of uff decreased from 50 yen to 45 yen. This would cause a _______ (options: movement along, shift of) the demand curve and therefore an increase in _________ (options: the demand for uff, the quantity of uff demanded).
Plug any value lower than the current number into the Average Income box. A decrease in average income causes a leftward _________ (options: movement along, shift of) the demand curve.
Chapter 3 Solutions
Principles of Economics 2e
Ch. 3 - Review Figure 3.4. Suppose the price of gasoline...Ch. 3 - Why do economists use the ceteris paribus...Ch. 3 - In an analysis of the market for paint, an...Ch. 3 - Many changes are affecting the market for oil....Ch. 3 - Lets think about the market for air travel. From...Ch. 3 - A tariff is a tax on imported goods. Suppose the...Ch. 3 - What is the effect of a price ceiling on the...Ch. 3 - Does a price ceiling change the equilibrium price?Ch. 3 - What would be the impact of imposing a price flour...Ch. 3 - Does a price ceiling increase the decrease the...
Ch. 3 - If a price floor benefits producers, why does a...Ch. 3 - What determines the level of prices in a market?Ch. 3 - What does a downward-sloping demand curve mean...Ch. 3 - Will demand curves have the same exact shape in...Ch. 3 - Will supply curves have the same shape in all...Ch. 3 - What is the relationship between quantity Demanded...Ch. 3 - How can you locate the equilibrium point on a...Ch. 3 - If the price is above line equilibrium level,...Ch. 3 - When the price is above the equilibrium, explain...Ch. 3 - What is the difference between the demand and the...Ch. 3 - What is the difference between the supply and the...Ch. 3 - When analyzing a market, how do economists deal...Ch. 3 - Name some factors that can cause a shift in line...Ch. 3 - Name some farm that can cause a shift in the...Ch. 3 - How does one analyze a market where both demand...Ch. 3 - What causes a movement along the demand curve?...Ch. 3 - Does a price ceiling attempt to make a price...Ch. 3 - How does a price ceiling set below the equilibrium...Ch. 3 - Does a price floor attempt to make a price higher...Ch. 3 - How does a price floor 521 above the equilibrium...Ch. 3 - What is consumer surplus? How is it illustrated on...Ch. 3 - What is producer surplus? How is it illustrated on...Ch. 3 - What is total surplus? How is it illustrated on a...Ch. 3 - What is the relationship between total surplus and...Ch. 3 - What is deadweight loss?Ch. 3 - Review Figure 3.4. Suppose the government decided...Ch. 3 - Explain why the following statement is false: In...Ch. 3 - Explain why the following statement is false: In...Ch. 3 - Consider the demand for hamburgers. If the price...Ch. 3 - How do you suppose the demographics of an aging...Ch. 3 - We know that a change in the price of a product...Ch. 3 - Suppose there is a soda tax to curb obesity. What...Ch. 3 - Use the four-step process to analyze the impact of...Ch. 3 - Use the four-step process to analyze the impact of...Ch. 3 - Suppose both of these events took place at the...Ch. 3 - Must government policy decisions have winners and...Ch. 3 - Agricultural price supports result in governments...Ch. 3 - Can you propose a policy that meld induce the...Ch. 3 - What term would an economist use to describe what...Ch. 3 - Explain why voluntary Martians improve social...Ch. 3 - Why would a free market mar operate at a quantity...Ch. 3 - Review Figure 3.4 again. Suppose the price of...Ch. 3 - Table 3.8 shows information on the demand and...Ch. 3 - The computer market in recent years has seen many...Ch. 3 - Table 3.9 illustrates the markets demand and...Ch. 3 - Table 3.10 shows the supply and demand for movie...Ch. 3 - A low-income county decides to set a price ceiling...
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- The annual demand for imported oranges is given by the following equation:QD = 600,000 − 30,000Pwhere P is the price per kilogram and QD is quantity of kilograms demanded per year.The supply of imported oranges is given by the equation:QS = 20,000P Calculate the following: ii. the amount of revenues collectedarrow_forwardOne possible effect of the increased reliance on cheap imported rice is the decrease inthe demand for locally produced palay, ceteris paribus. If this happens, the demand forpalay will shift to the left. Based on Figure 1, identify the TR, TR’ and ΔTR of the sellersat the farm evelarrow_forwardThoroughly and completely explain thedifferences between a change in demand and achange in quantity demanded along with thecauses of those changes, and how each changeis graphically represented.arrow_forward
- As a general rule, is it safe to assume that a change in the price of a good will always have its most significant impact on the quantity demanded of that good, rather than on the quantity demanded of miller goods? Explain.arrow_forwardThe market demand for productXis given by: \[ Q_{d}=6-1 / 2 P \text { or } P d=12-2 Q \] The market supply for goodXis given by: \[ Q_{s}=-14+2 P \text { or } P s=7+1 / 2 Q \] whereP=price per unit andQis number of units. Draw a supply-and-demand graph with these curves. 1.) Using the line drawing tool, draw the supply and demand curves. Properly label your lines. 2.) Using the point drawing tool, plot the equilibrium point. Label your point 'E'. Note: Carefully follow the instructions above and only draw the required objects. The equilibrium price is$and the equilibrium quantity is unit(s). (Enter your responses as integers.) A per-unit excise tax is imposed on suppliers of productX, and the market supply with the tax is now given by: \[ Q_{s}=-19+2 P \text { or } P s=9.50+1 / 2 Q \] Using the graph on the right, show this supply curve. 1.) Using the line drawing tool, draw the new supply curve. Label your line 'S1+tax'.1. Note: Carefully follow the instructions above and only draw…arrow_forwardven the following linear functions describing the supply and demand for widgets: na, using the algebraic methods explained in the lesson, the equilibrium price ) Cony substituting the equilibrium price into the original functions, calculate the equilibrium quantity rconirm your results by completing a supply and demand schedule and by graphing the supply and demand curves, being sure to mark in the equilibrium price and quantity on the axes. Qs = -4 + 2P Qd = 24 - 2P a) Equiibrium price : as- Qd Qs =-4+2x7=10 Qd - 24-14= 10 %3D -4+ap= 24-2P -4P=-28 P=7 Qs = -4 + 2P lo Price ($) Qd 24 - 2P 8. 10 10 2. Equaibrium at (7,10) 123456189 10 Pricearrow_forward
- in decamber,the price of christmas trees rises and the quantity of trees sold also rises.is this a violatin of the law of demandarrow_forwardIn 2018, a cold front in Barbados increased both the demand for water heaters andgasolines. The usage of gasoline was 581 tonnes, an increase from 499 tonnes in theprevious year. The Petroleum Company of Barbados advised Government officials thatdemand could outweigh supply and asked companies to increase the supply. They alsoasked major gasoline users, such as power plants, to reduce demand.i. Illustrate the effect of the cold front on the demand for gasoline using a demandcurve diagram over the two years. ii. Assuming the Petroleum Company of Barbados did not issue a directive for anincrease in supply and a decrease in demand, explain the problem that would existin the economy and how would this be corrected over time. iii. Illustrate the effect of major gasoline suppliers increasing supply as well as usersreducing their demand. iv. Discuss one factor EACH that you think influence demand and supply for waterheaters. Provide examples v. Is demand for gas is price elastic or price…arrow_forwardIn 2018, a cold front in Barbados increased both the demand for water heaters andgasolines. The usage of gasoline was 581 tonnes, an increase from 499 tonnes in theprevious year. The Petroleum Company of Barbados advised Government officials thatdemand could outweigh supply and asked companies to increase the supply. They alsoasked major gasoline users, such as power plants, to reduce demand. i. Illustrate the effect of the cold front on the demand for gasoline using a demandcurve diagram over the two years. ii. Assuming the Petroleum Company of Barbados did not issue a directive for anincrease in supply and a decrease in demand, explain the problem that would existin the economy and how would this be corrected over time.arrow_forward
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