This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: Von Neumann-Morgenstern - Proof I: Lecture XII Charles B. Moss September 16, 2010 I. A:A If u ≺ v then α < β implies (1 − α ) u + αv ≺ (1 − β ) u + βv (1) 1. The direction of the assertion is that if u ≺ v and α < β , then the preference ordering must follow. 2. To demonstrate this we start with axiom 3:B:a given 0 ≤ α ≤ 1 u ≺ v ⇒ u ≺ αu + (1 − α ) v ⇒ u ≺ (1 − β ) + βv (2) 3. Intuitively, this axiom states that if u is the inferior bundle, then any bundle constructed with any combination of v must be pre- ferred to u . 4. bf Axiom 3:B:b reverses this axiom by saying that if u is the pre- ferred bundle then it must also be preferred to a bundle containing any amount of v . u v ⇒ u αu + (1 − α ) v (3) 5. We start from the first equation, replace with and by replacing the first in the right-hand side with preceding equation yields (1 − β ) u + βv ((1 − β ) u + βv ) + (1 − γ ) v (4) 1 AEB 6182 Agricultural Risk Analysis and Decision Making...
View Full Document
- Fall '08
- Class II railroad, Professor Charles B. Moss, Agricultural Risk Analysis