Abram Demski | v1.9.0Sep 22nd 2020 | (+276) | ||

Ruben Bloom | v1.8.0Sep 15th 2020 | (+143/-150) | ||

Multicore | v1.7.0Sep 13th 2020 | |||

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brook | v1.5.0Aug 28th 2020 | (+22) | ||

brook | v1.4.0Aug 11th 2020 | (+71/-12) | ||

Jim Babcock | v1.3.0Apr 29th 2020 | |||

Ruben Bloom | v1.2.0Apr 16th 2020 | |||

Ruben Bloom | v1.1.0Apr 16th 2020 | (-950) |

*See also: *Complexity of Value, Decision Theory, Game Theory, Orthogonality Thesis, Utilitarianism, Preference, Utility, VNM Theorem

The VNM Theorem tag is likely to be a strict subtag of the Utility Functions tag, because the VNM theorem establishes when preferences can be represented by a utility function, but a post discussing utility functions may or may not discuss the VNM theorem/axioms.

~~These~~*See also: *Complexity of Value, Decision Theory, Game Theory, Orthogonality Thesis, Utilitarianism, Preference, Utility

Utility Functions do not work very well in practice for individual humans. Human drives are not coherent nor is there any reason to think they would be (Thou Art Godshatter), and even people with a strong interest in the concept have trouble working out what their utility function actually is even slightly (Post Your Utility Function). Furthermore, humans appear to calculate utility and disutility separately - adding one to the other does not predict their ~~behaviour~~behavior accurately. This makes humans highly exploitable.

~~See also: ~~~~Complexity of Value~~~~, ~~~~Decision Theory~~~~, ~~~~Game Theory~~~~, ~~~~Orthogonality Thesis~~~~, ~~~~Utilitarianism~~~~, ~~~~Preference~~~~, ~~~~Expected utility~~~~, ~~~~Utility~~

These do not work very well in practice for individual humans. Human drives are not coherent nor is there any reason to think they would be (Thou Art Godshatter), and even people with a strong interest in the concept have trouble working out what their utility function actually is even slightly (Post Your Utility Function). Furthermore, humans appear to calculate utility and disutility separately - adding one to the other does not predict their behaviour accurately. This makes humans highly exploitable.

pjeby posits humans' difficulty in understanding their own utility functions as the root of akrasia.

However, utility functions can be a useful model for dealing with humans in groups, *e.g.* in economics.

*See also: Complexity of Value, Decision Theory, Game Theory, Orthogonality Thesis, Utilitarianism, Preference, Expected utility, Utility*

A **utility function** assigns numerical values ~~("utilities"~~("utilities") to outcomes, in such a way that outcomes with higher utilities are always __ preferred__ to outcomes with lower utilities.

*See also: Complexity of Value, Decision Theory, Game Theory*

A utility function assigns numerical values ("utilities") to outcomes, in such a way that outcomes with higher utilities are always __preferred__ to outcomes with lower utilities.