In a study at a large state university, students were randomly assigned roommates. Researchers found that, on average, mates assigned to roommates who reported drinking alcohol in the year before entering college earned GPAs one-quarter point lower than those assigned to non-drinking roommates, for males who drank frequently before college, being assigned to a roommate who also drank frequently before college reduced their GPAs by two-thirds of a point. Draw a graph showing the
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Economics, Student Value Edition (7th Edition)
- David-Michael is conducting an experiment, charging different prices for the same products at different stores and measuring sales. With this information, he will construct a demand curve. How can David-Michael use this information?arrow_forwardA Gain from Trade occurs when a unit is sold for a price greater than the unit of the good is worth to a seller and, simultaneously, bought for a price less than the good is worth to a buyer. Consider the first 2 units of the good that would be sold in this market (the vertical red line on the graph). which answer choices are correct for the graph given bellow?arrow_forwardA common marketing tactic among many liquor stores is to offer their clientele quantity (or volume) discounts. For instance, the second-leading brand of wine exported from Chile sells in the United States for $15 per bottle if the consumer purchases up to eight bottles. The price of each additional bottle beyond this is only $8. (a) If a consumer has $200 to divide between purchasing this brand of wine and other goods, graph the consumer’s budge set when liquor stores use this marketing tactic and the price of other goods is $1.00. (b) Assuming a consumer has standard indifference curves, will a consumer ever purchase exactly eight bottles of this wine?arrow_forward
- Currently Uber limits cars to only models that were produced in the past ten years. Suppose that Uber decides only models produced in the past five years can be driven. How does this affect the market for Uber Rides? Demonstrate graphically and briefly explain why.arrow_forwardIt is about travel method problem. You have been commissioned to estimate the demand curve for admission to EuroLand, an amusement park in France. To do this, you spend a day surveying visi tors to the park. Before doing this, you divide the area around the park into 10 zones with the distance from the park approximately constant within a zone. You ask each person you interview where they come from. Based on that information, and figures on annual attendance at the park, you are able to calculate the annual number of visitors from each zone. Your data are shown below: (table) Zone Distance from park (km) Zonal population Number of visitors 1 10 5,000 500 2 20 10,000 900 3 30 25,000 2,000 4 40 10,000 700 5 50 100,000 6,000 6 60 500,000 25,000 7 70 200,000 8,000 8 80 50,000 1,500 9 90 100,000 2,000 10 100 100,000 1,000 You note that admission to Euroland is 150 euros per person. you also calculate that transportation costs, including time costs, are…arrow_forwardThe demand for coffee is given by the following equation, where QD�� stands for the quantity demanded and P stands for price. QD=100−4PQD= 100- 4P The supply of coffee is given by the following equation, where QS�� stands for the quantity supplied and P stands for price. QS=-10+2PQS= -10+ 2P For parts a-d, consider a graph of the demand and supply curves with price on the vertical axis and quantity on the horizontal axis. What is the slope of demand? Slope = At what price is quantity demanded equal to zero (this is, graphically, the vertical intercept of Demand)? P = What is the slope of supply? Slope = At what price is quantity supplied equal to zero (this is, graphically, the vertical intercept of Supply)? P =arrow_forward
- At the start of 2010, the UK was hit by extremely cold weather including snow and ice. As a result, there was a major increase in demand for salt to put on the roads to make them safer. However, the supply of salt in the UK comes mainly from three salt mines; one in Cheshire, one in Cleveland, and one in County Antrim. The shortage was so great that at one point the government ordered councils to use less grit on the roads and stopped gritting the hard shoulder of the motorways. Problems in the past meant councils had been instructed to hold a few days worth of stock of salt but this was not enough to make the roads safe in what was the coldest period since 1963. Questions Sketch a supply curve that represents the supply of salt in the short run. Explain your diagram. Why do councils keep stocks of salt? Add to your first diagram a long-run supply curve for salt; explain your diagram.arrow_forwardAt the start of 2010, the UK was hit by extremely cold weather including snow and ice. As a result, there was a major increase in demand for salt to put on the roads to make them safer. However, the supply of salt in the UK comes mainly from three salt mines; one in Cheshire, one in Cleveland, and one in County Antrim. The shortage was so great that at one point the government ordered councils to use less grit on the roads and stopped gritting the hard shoulder of the motorways. Problems in the past meant councils had been instructed to hold a few days worth of stock of salt but this was not enough to make the roads safe in what was the coldest period since 1963. Questions Add to your first diagram a long-run supply curve for salt; explain your diagram.arrow_forwardAt the start of 2010, the UK was hit by extremely cold weather including snow and ice. As a result, there was a major increase in demand for salt to put on the roads to make them safer. However, the supply of salt in the UK comes mainly from three salt mines; one in Cheshire, one in Cleveland, and one in County Antrim. The shortage was so great that at one point the government ordered councils to use less grit on the roads and stopped gritting the hard shoulder of the motorways. Problems in the past meant councils had been instructed to hold a few days worth of stock of salt but this was not enough to make the roads safe in what was the coldest period since 1963. Questions Why do councils keep stocks of salt?arrow_forward
- You are advising Roy on the opening of his Original-Original Famous Pizzeria. By plotting the points below on a coordinate plane, you can show Roy the price points that would lead to a shortage of slices, a surplus of slices, and the point of maximum efficiency per slice. On the graph paper below: label your vertical axis with prices and your horizontal axis with quantity, plot each point of the demand and draw the curve with one color. plot each point of supply and draw the curve with a different color, identify the equilibrium point on your grapharrow_forwardYou have been asked to analyze what will happen to the New England market for electricity if the Winter 2022-23 (December 2022 through February 2023) results in much colder temperatures than Winter 2021-22 (December 2021 through February 2022), causing all residential customers to scramble for more electricity than they would typically need to heat their homes. Using your graph from Question 2, analyze the impact of this change in consumer desire for more electricity. Clearly show any shifts in demand and/or supply curve(s) that came about because of this exit. Label any shifted curves as D2 and/or S2. Clearly show the new market equilibrium. Label the new equilibrium price as P2 and equilibrium quantity transacted as Q2arrow_forwardSuppose the annual demand for gasoline as motor fuel in the US can be represented by the demand curve: Qd=125 - 10*P, where Qd is the quantity measured in billions of gallons, P is the price in dollars per gallon, and the supply curve is: Qs=-100 + 40*P . A) First, solve each equation for P, so that you can represent the inverse demand and the inverse supply on a graph with P on the vertical axis B) Now, draw the supply-demand graph, with P on the vertical axis. C) What is the equilibrium quantity of gasoline, in billions of gallons per year? The equilibrium quantity is D) What is the equilibrium price of gasoline? E) What is the amount of consumer surplus (CS), in billions of dollars, at the equilibrium price? F) What is the amount of producer surplus (PS), in billions of dollars, at the equilibrium price G) What is the total surplus (TS)?arrow_forward
- Economics (MindTap Course List)EconomicsISBN:9781337617383Author:Roger A. ArnoldPublisher:Cengage Learning