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## PowerPoint Slideshow about ' MATH III' - tabib

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- 1,2,3,….,m States of the world
- p1, p2,…..pm probabilities
- Y1, Y2,…..,Ym income in state i
- F(Y1, Y2,…..,Ym , p1, p2,…..pm) - objective function

Expected utility,

U - von Neumann Morgenstern utility function

Insurance

- Y1 < Y2
- Premium $1 buys $b compensation in the bad state.
- $x → $bx
- Y1 – x + bx, Y2 – x

Action to reduce the risk (Care)

- Y1 < Y2
- Cost z determines p1 = p(z).
- p’(z) < 0.

+

Marginal benefit

Marginal cost

zero expected profit:

r a random variable

Managerial Incentives

- Owner hires a Manager for a project
- Project (if it succeeds) yieldsV
- Probability of success is p or q(p > q).
- Themanager determines the probability
- Cost of the higher probability p is e.
- Manager’s salary isw.

First Best (the owner can observe the manager’s quality)

His expected profit:

assume:

and:

Then Owner can get:

The owner cannot observe the manager’s quality

If the owner pays the manager according to success or failure

Pays x if success, and yif failure

Incentive for manager

indifference

Participation constraint

Make x, x-y small

same as First Best

Cost-Plus Contracts

- Quantity produced q at cost c
- Government pays R >qc
- A firm with costs c1or c2 ( > c1 )
- Government knows prob. p1p2
- Government chooses R1 R2 c1 c2

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