EBK MICROECONOMICS
2nd Edition
ISBN: 9780134524931
Author: List
Publisher: YUZU
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Chapter 18, Problem 11Q
To determine
Explain goods with network-externalities using an example.
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A network effect, or network externality, exists when: Group of answer choices a firm
’
s average total cost rises continuously over the entire ran the customers of one business overlap with those of another competing business. the costs of resources for an industry rises as the number of sellers in an industry expands. the value of a product or service to each consumer increases as the number of users expands.
The following figure shows the demand curve for good x for an agent whose demand function for this good is Qx(px,py,W)=W/(3px). The figure is a two-axis graph in which the horizontal axis measures Qx and the vertical axis measures px. The demand curve shown, in blue, is a downward sloping curve. It passes through the point (10,4).
Then the value of W for the demand curve shown is?
100
110
40
120
10
Alex, who was convinced that "Football is coming home", was very excited for the World Cup last year. Unfortunately, he realized that his favourite Paul Gascoigne jersey from Euro 1996 was getting old, so he wanted to buy a new one before England's first game the following week. He could either buy a 2014 James Milner shirt from retailer A, which would make him totally happy (utility=1), or a 2006 David Beckham shirt from retailer B, which gives him a utility of 0.8. However, the shirts are not available today. There is a 50% chance that retailer A will have the shirt on the week-end, and 70% chance that retailer B will have theirs on the week-end. Due to time and work constraints, Alex can only visit one of these retailers before the tournament starts, otherwise he will have to keep his old 1996 shirt, which gives him a utility of 0.5.
He can also ask his friend Nathan to check both places in the morning. But being a Welsh supporter, Nathan will not do it for free and wants some…
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- Two roommates John and Joe are playing a simultaneous game of cleaning the apartment. If neither of them clean, the apartment gets filthy and both get a utility of 2. If John cleans and Joe doesn't, John gets a utility of 1 and Joe gets a utility of 4. If Joe cleans and John doesn't, Joe gets a utility of 1 and John gets a utility of 4 and if both clean up the apartment, they each get a utility of 3. Is the equilibrium efficient?arrow_forwardFrom economic theory, the willingness of a consumer to give up consumption of one commodity (X) in exchange for an increase in some other commodity (Y) and remain equally satisfied can be mathematically calculated as their marginal utility of good X divided by their marginal utility of good Y. What is the economic term for this measure or concept?arrow_forwardCome up with an example with four agents and four items in which there is only one Pareto efficient allocationarrow_forward
- You work for a marketing firm that has just landed a contract with Run-of-the-Mills to help them promote three of their products: guppy gummies, frizzles, and kipples. All of these products have been on the market for some time, but, to entice better sales, Run-of-the-Mills wants to try a new advertisement that will market two of the products that consumers will likely consume together. As a former economics student, you know that complements are typically consumed together while substitutes can take the place of other goods. Run-of-the-Mills provides your marketing firm with the following data: When the price of guppy gummies decreases by 5%, the quantity of frizzles sold decreases by 4% and the quantity of kipples sold increases by 6%. Your job is to use the cross-price elasticity between guppy gummies and the other goods to determine which goods your marketing firm should advertise together. Relative to Guppy Gummies Recommend Marketing with Guppy Gummies Cross-Price…arrow_forwardFor the utility function U = Qx0.15Qy(1-0.15) find the trade-off rate between good X and good Y at Qx= 9 and Qy=13arrow_forwardYou work for a marketing firm that has just landed a contract with Run-of-the-Mills to help them promote three of their products: penguin patties, raskels, and cannies. All of these products have been on the market for some time, but, to entice better sales, Run-of-the-Mills wants to try a new advertisement that will market two of the products that consumers will likely consume together. As a former economics student, you know that complements are typically consumed together while substitutes can take the place of other goods. Run-of-the-Mills provides your marketing firm with the following data: When the price of penguin patties decreases by 20%, the quantity of raskels sold decreases by 22% and the quantity of cannies sold increases by 7%. Your job is to use the cross-price elasticity between penguin patties and the other goods to determine which goods your marketing firm should advertise together. Complete the first column of the following table by computing the cross-price…arrow_forward
- You work for a marketing firm that has just landed a contract with Run-of-the-Mills to help them promote three of their products: splishy splashers, raskels, and kipples. All of these products have been on the market for some time, but, to entice better sales, Run-of-the-Mills wants to try a new advertisement that will market two of the products that consumers will likely consume together. As a former economics student, you know that complements are typically consumed together while substitutes can take the place of other goods. Run-of-the-Mills provides your marketing firm with the following data: When the price of splishy splashers decreases by 8%, the quantity of raskels sold increases by 6% and the quantity of kipples sold decreases by 8%. Your job is to use the cross-price elasticity between splishy splashers and the other goods to determine which goods your marketing firm should advertise together. Complete the first column of the following table by computing the cross-price…arrow_forwardThe chicken game has often been used to model crises. Recall that in this game, the two players drive straight at each other. They can choose to swerve or keep going straight. If one swerves, and the other goes straight, assume that the one that swerves gets -10 utility and the one that goes straight gets 10 utility, since the one that swerves is deemed the loser. If both swerve, both get 0 utility. If both go straight, they crash and get -50 utility. Assume both players have a discount rate of 0.9 Draw the stage game of date night List all pure strategy Nash equilibria of the single stage game Consider an infinite horizon version of Chicken. Can you get an SPNE in which the both players swerve using a grim trigger type strategy? Consider the following strategies: both players swerve, as long as neither ever went straight. If one player ever plays straight, in all subsequent rounds the player that swerved goes straight and the player that went straight swerves. Can you think…arrow_forwardWhat is the matching principle?arrow_forward
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