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- P, = 100-Q1 - BQ2 P2= 100- BQ1-Q2 Q1 Q, 5-40. BR;: = 25– BR2: Q2 = 25– 4 (Product Differentiation Problem) In the case when beta=1, solve for Nash equilibrium and profits. O Q', = 100, Firm 1 profits = 2800 Q'2 = 100, Firm 2 profits = 2800 O Q, = 100, Firm 1 profits = 0 Q'2 = 100, Firm 2 profits = 0 O Q', = 50, Firm 1 profits = 280 Q2= 50, Firm 2 profits = 280 O Q', = 25, Firm 1 profits = 1200 Q'2= 25, Firm 2 profits = 12001. For what range of interest rates could the collusive outcome be supported if the following game is infinitely repeated? A C X 0,110 y 50, 50 a) r > 50% b) r > 10% c) none of the above d) r < 20% e) r < 500% B d 60, 60 110,04. An auctioneer holds a second-price auction for two bidders, Ann (A) and Bonnie (B), who have independent private values of the good 0, and 0g If a bidder wins, her payoff is her value 0 minus the price she pays, and if she loses, her payoff is 0. The values are independently and identically distributed, but otherwise you don't need to know the specific distributions to solve the problem. Ann and Bonnie's respective strategies are to bid some value b0), that is, bid given their privately-known value (type). e. Suppose the good had one true value for both bidders equal to the average of 0, and e, (signals that are still i.i.d.); hence, the good's true value has a common component. Suppose Ann knows Bonnie is going to bid her own evaluation 0, no matter what, but like normal, Ann doesn't know 0g. Explain why bidding 0, is now a strictly dominated strategy for Ann.
- 4. An auctioneer holds a second-price auction for two bidders, Ann (A) and Bonnie (B), who have independent private values of the good 0, and e, If a bidder wins, her payoff is her value 0 minus the price she pays, and if she loses, her payoff is 0. The values are independently and identically distributed, but otherwise you don't need to know the specific distributions to solve the problem. Ann and Bonnie's respective strategies are to bid some value b (0.). that is, bid given their privately-known value (type). a. Explain what a second price auction is, who wins given some pair of bids b, and bg. and what the winner pays. b. Why is a strategy where Ann bids above her own value 0, weakly dominated by a strategy where she bids her value? c. Why is a strategy where Ann bids below her own value e, weakly dominated by a A strategy where she bids her value? d. Applying the ideas from (b) and (c) to both Ann and Bonnie, what is the Weakly Dominant Strategy Equilibrium for this game?11.3. Consider a set of monetary prizes X = {0,12, 24} and three lotteries: %3D 5 1 1) 12'4'3 1 3 1 (1 5 1 p = 6'4' 12 and r = 3' 12' 4 (a) Calculate the expected value of the lotteries p,q, and r. Can you rank them in terms of stochastic dominance? Explain!7
- 5Y = C+1+G, C - 200 + 0.5 (Y - T). I- 300 – 50r, M 0.5Y -50 (r + E#) T = 200, G= 200, M= 1000, En = 0. Suppose, in addition, that P= 2.5 and that the output is at its long-run level. Next, suppose that a spread of COVID-19 and the resulting lockdown reduces overall consumption, such that the new consumption function is C = 100 + 0.5 - (Y - T). (a) What are the new equilibrium output, consumption, investment, real interest rate, and price level in the short run? (b) What are the new equilibrium output, consumption, investment, real interest rate, and price level in the long run? (c) What is the required stimulus check to households (reduction in taxes T) to bring the short-run output back to its long-run level? What are the effects of this fiscal policy on consumption, investment, and the real interest rate? Assume that no other policy is in place. (d) What is the required change in the money supply M to bring the short-run output back to its long-run level? What are the effects of this…For the infinitely repeated game based on the stage game as shown, consider a symmetric strategy profile in which a player initially chooses x and continues to choose x as long as no player has ever chosen y; if y is ever chosen, then a player chooses z thereafter. Derive a condition on the discount factor for this strategy profile to be a SPNE.
- Solve all this question compulsory......Consider the stage game shown in table below. Suppose this game is played twice. Also, assume that players do not discount future payoffs. That is, 6₁ = 6₂ = 1. How many SPNEs does the repeated game (where the shown stage game is played twice) have? Player 2 L M R U 9,9 6, 11 1, 12 Player 1 C 11, 6 5,5 1, 1 D 12, 1 1, 1 2, 2 9 Numerical answer5. Consider the following game in which Nature (N) chooses the Player 1's type as Tough (T) with probability p and Weak (W) with probability 1 p. Player 1 observes his type and chooses Fight (F) or Not Fight (NF). Player 2 observes the actions of the Player 1 but not his type, and chooses Yield (Y) or Not Yield (NY). When T Y NY F 3,1 1,0 NF 2,1 0,0 F NF When W Y NY 2,0 0,1 3,0 1,1 Find the set of perfect Bayesian Nash equilibria of the game.