Utility Difference before Expectation Calculation

Risk Aversion

Prudence

Temperance

Probability of options is x2 (ambiguity), and probability of people’s mind is y2 (subjective probability)

Variable

ε × ( 1 y 2 ) { x 2 y 2 + ( 1 x 2 ) ( 1 y 2 ) + 2 x 1 x 2 × y 1 y 2 cos ( θ ) }

Constant

k × ( 1 2 y 2 ) { x 2 y 2 + ( 1 x 2 ) ( 1 y 2 ) + 2 x 1 x 2 × y 1 y 2 cos ( θ ) }

Variable

ε 2 × ( 1 2 y 2 ) { x 2 y 2 + ( 1 x 2 ) ( 1 y 2 ) + 2 x 1 x 2 × y 1 y 2 cos ( θ ) }