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[Show your work and explain your reasoning. To get full credit, it is not sufficient to answer co
ectly but without explaining your solution. Similarly, you can get partial credit if your reasoning is co
ect, but you make a mistake in your calculations.]
A German manufacturer, Bosch, supplies electric motors to Tern, a Taiwanese e-bikes manufacturer. Bosch can supply high-quality motors, or it can cut corners and make low-quality ones. Tern must decide whether to buy 10,000 or 20,000 motors from Bosch’s cu
ent production run. All motors in a batch are of the same quality. Tern cannot tell the quality of the motors when it decides how many to buy, but it does learn the quality once the shipment a
ives and is opened. (The nonrefundable payment must be made before the motors are shipped.)
If Tern buys 20,000 units, its profits are $30 million if quality is high, and zero if quality is low. When it buys 10,000 units, its profits are $20 million if quality is high, and $10 million if quality is low. If Bosch sells 20,000 units, then it earns a profit of $40 million if it makes low-quality motors, but $15 million if it supplies high-quality ones. If Bosch sells 10,000 units, its profits are $10 million if it makes low-quality motors, but zero if it makes high-quality ones.
(a) [8 points] Suppose the two companies interact only once, and they make their decisions simultaneously (i.e., Bosch decides on quality before knowing how large an order it will receive, and Tern must decide how many units to order before learning their quality). Describe the game in matrix form and find the Nash equili
ium.
(b) [4 points] What outcome is collectively prefe
ed to the above-described equili
ium outcome? Explain why this better outcome cannot be achieved in a one-shot simultaneous move game. In particular, who has an incentive to deviate from that outcome?
Now suppose that Bosch and Tern are in a long-run ongoing business relationship. We can model such an ongoing relationship as a repeated game in which the two firms play the one-shot game of part (a) in every period. We aim to study the possibility of a cooperative equili
ium in which Bosch makes high- quality motors in every period, and Tern buys 20,000 units in every period.
(c) [6 points] Describe clearly (in words) possible strategies of each player that could sustain such a cooperative a
angement. (In particular, specify how the two companies should agree to play the game, and what each would do in case anyone cheats.)
Suppose that there is a production run every month, and that the monthly discount rate is ?.
(d) [6 points] Find the conditions on ? under which Bosch wants to sustain the cooperative agreement. Interpret the economic intuition of these conditions.
(e) [6 points] Find the conditions on ? under which Tern wants to sustain the cooperative agreement. Interpret the economic intuition of these conditions.
Answered Same DayMay 11, 2022

Answer To : See attached Word Doc.

Komalavalli answered on May 12 2022
13 Votes
1.
    Tern
(profits in million)
    
Bosch
(profits in million)
    
     
    High quality(20,000 units)

    Low Quality(20,000 units)
    High quality(10,000 units)
    Low quality(10,000 units)
    
    High quality(20,000 units)
    ($30 ,$15)
    ($30 ,$40)
    ($30 ,$10)
    ($30 ,$0)
    
    Low Quality(20,000 units)
    ($0,$15)
    ($0,$40)
    ($0,$10)
    ($0,$0)
    
    High quality(10,000 units)
    ($20,15)
    ($20,$40)
    ($20,$10)
    ($20,$0)
    
    Low quality(10,000 units)
    ($10,$15)
    ($10,$40)
    ($10,$10)
    ($10,$0)
When Bosch moves first in the game we will look into column wise payoff. $40 million is the highest possible profit that Bosch can earn so he chose to supply low quality motors of 20,000 units. By considering bosch action Tern will look into the row wise payoff, the highest possible payoff that the Tern can earn is $30 million at nash equili
ium point Ten will choose to buy motor of high quality and...
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