ⓘ Exponential utility
In economics and finance, exponential utility is a specific form of the utility function, used in some contexts because of its convenience when risk is present, in which case expected utility is maximized. Formally, exponential utility is given by:
u c = { 1 − e − a c / a ≠ 0 c a = 0 {\displaystyle uc={\begin{cases}1e^{ac}/a&a\neq 0\\c&a=0\\\end{cases}}}c {\displaystyle c} is a variable that the economic decisionmaker prefers more of, such as consumption, and a {\displaystyle a} is a constant that represents the degree of risk preference (a > 0 {\displaystyle a> 0} for risk aversion, a = 0 {\displaystyle a=0} for riskneutrality, or a < 0 {\displaystyle a
 aversion. Isoelastic function Constant elasticity of substitution Exponential utility Risk aversion Ljungqvist, Lars Sargent, Thomas J. 2000 Recursive
 alternative utility functions such as: CES constant elasticity of substitution, or isoelastic utility Isoelastic utility Exponential utility Quasilinear
 value of the utility function. Notable special cases of HARA utility functions include the quadratic utility function, the exponential utility function
 measure which depends on the risk aversion of the user through the exponential utility function. It is a possible alternative to other risk measures as
 with quadratic utility 2 two  periods, exponential utility and normally  distributed returns, 3 infinite  periods, quadratic utility and stochastic
 in a graph in which each player has a utility function that depends only on him and his neighbors. As the utility function depends on fewer other players
 risk aversion, a term in Economics referring to a property of the exponential utility function Cara Sucia disambiguation Caras disambiguation Carra
 assertion of David P. Reed that the utility of large networks, particularly social networks, can scale exponentially with the size of the network The
 this integral exists. Exponential discounting and hyperbolic discounting are the two most commonly used examples. Discounted utility Intertemporal choice
 multiplying by a fixed constant. Logarithmic growth is the inverse of exponential growth and is very slow. A familiar example of logarithmic growth is
 investor s remaining lifetime. Under certain assumptions including exponential utility and a single asset with returns following an ARMA 1, 1 process, a
Dichotomous preferences 
Fractionally subadditive 
Gorman polar form 
Gross substitutes (indivisible items) 
Homothetic preferences 
Indirect utility function 

Isoelastic utility 
King–Plosser–Rebelo preferences 
Leontief utilities 
Linear utility 
Responsive set extension 
Stone–Geary utility function 

Unit demand 
Utility functions on divisible goods 

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