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Consider an industry that consists of two firms, A and B. They face a demand curve q = qA + qB = 14 - p, where p is the industry price of output. Both firms have constant average and marginal cost of $2. (a) Suppose they form a cartel and choose the price that maximizes the sum of their profits. Show that they will choose p = $8. (b) Now suppose that instead of forming a cartel, they choose prices simultaneously. If they choose different prices, the firm that chooses the lower price captures the entire market; if they set the same price they split the market evenly. Suppose they play this game once. Show that in a Bertrand equilibrium, both firms will charge $2. (c) Suppose they play this game an infinite number of times. Consider the following grim trigger strategy. Choose the cartel price (i.e., $8) in the first period. Continue to choose the cartel price in subsequent periods if your opponent has always chosen the cartel price up to that point. If your opponent ever chooses a price other than $8, choose the Bertrand price (i.e., $2) from that point forward. For what range of values of the discount factor do these trigger strategies constitute a subgame perfect equilibrium? (d) Now change this game so that there are N ≥ 2 oligopolists; thus if they all charge the same price, each will sell a proportion 1/N of the market demand at that price. Express the critical discount factor as a function of N. Does your answer suggest that it will be easier to sustain cooperation when N is small or when N is large? What is the intuition behind this result?
Use a diagram to show the consumer surplus , producer surplus and total surplus of the market for groceries in this small town. Now suppose these small supermarkets successfully form a cartel which behaves like a monopoly, How does this cartel affect..
He is going to travel the world this summer and won't be working. How much must be set aside in his savings account for the 3-month summer to cover his rent for next year? The savings account earns 3% with monthly compounding.
Illustrate what is Gillette's advertising elasticity. Is Gillette's Demand more or less responsive to advertising than other firms in its peer group. Elucidate also Elucidate how all calculations.
Ron and Jerry purchase investment real estate together, titling it as Tenants in Common. Jerry dies after eating too many chicken wings at 5 cent wing night, and his will provides that all assets pass to his son. Ron claims that, as the co-owner, he ..
Is there evidence that a party realignment is occurring in the United States? What is the organizational structure of political parties? What are some of the functions of parties in the electoral arena? How do both the electoral system and federalism..
These options also sell for $3 each. Strategy C is to establish a zero-cost collar by writing the January calls and buying the January puts.
When you look at monetary or fiscal policy, it’s important to consider the Phillips curve. Explain what the short-run Phillips curve is and why it is important in thinking about economic policy. Explain what stagflation is and why stagflation is inco..
The following is a quote from a news article: "If a company makes product donations to the school- computers for instance - then the image of a. company goes up as graduate students use the company's products." Does such action consistent with a comp..
If an economy is producing at a point on its production possibilities frontier, it is:
A 20 year coupon bond with face value $100,000 and a 4% coupon rate has a yield to maturity i = 0.08. What is the value of the annual coupon payment? What is the price of this coupon bond?
Suppose a firm sells a good in 2 markets, each market is characterized by their own respective demand curve. Calculate the profit maximizing outputs and prices in each market assuming the firm can price discriminate. Calculate the own price elasticit..
The Mundell-Fleming model takes the world interest rate r as an exogenous variable. Leti´s consider what happens when this variable changes. What might cause the world interest rate to rise? In the Mundell-Fleming model with a O¨xed exchange rate, wh..
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