Microeconomics · 免费预览

定价困境

两家竞争对手对同一种产品定价时面临困境:无论对方如何行动,降价都能获益,于是双方最终都会降价,卡特尔价格在无人有意为之的情况下便土崩瓦解。

1. The game

The game

2. The dominant pull

The dominant pull

3. Why cartels wobble

Why cartels wobble

4. Tacit versus explicit

Tacit versus explicit

5. Finding the equilibrium

In the airline matrix, what is the Nash equilibrium of the one-shot fare game?

6. The cartel's crack

OPEC members agree to quotas. Why is the agreement chronically hard to hold?

7. The temptations

In the fare game, an airline holding at 200 while its rival cuts earns 10 million, while cutting alongside the rival earns 20 million. Compute the payoff improvement in millions from cutting in that situation, and write the number.

8. The dominant pull

In the fare game, if both airlines hold fares each earns 50 million, if one cuts while the other holds the cutter earns 80 and the holder 10, and if both cut each earns 15. What should each airline do in the one-shot game?

9. The cartel's chronic wobble

OPEC members agree to production quotas. Why is the agreement chronically hard to hold?

10. The temptation gap

In a market where mutual restraint earns each firm 50 million and quiet defection alone earns 80 million, compute the one-time gain from defecting against a restrained rival, and write the number.

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