• Some branches of economics and game theory deal with indivisible goods, discrete items that can be traded only as a whole. For example, in combinatorial...
    12 KB (1,808 words) - 15:21, 5 April 2021
  • Thumbnail for Aggregate function
    (higher-order function) Group by (SQL), SQL clause OLAP cube Online analytical processing Pivot table Relational algebra Utility functions on indivisible goods#Aggregates...
    11 KB (1,472 words) - 20:00, 23 July 2025
  • utility functions of divisible goods. These functions are commonly used as examples in consumer theory. The functions are ordinal utility functions,...
    4 KB (203 words) - 20:20, 31 May 2025
  • Unit demand (category Utility function types)
    unit-demand function is an extreme case of a submodular set function. It is characteristic of items that are pure substitute goods. Utility functions on indivisible...
    2 KB (331 words) - 03:05, 14 December 2019
  • bicycle as 200, and the bundle {car, bicycle} as 900 (see Utility functions on indivisible goods for more examples). There are two problems with this approach:...
    47 KB (6,587 words) - 07:13, 12 May 2025
  • game theory (as functions modeling user preferences) and electrical networks. Recently, submodular functions have also found utility in several real world...
    22 KB (3,349 words) - 01:08, 20 June 2025
  • Fractionally subadditive valuation (category Utility function types)
    submodular set function is XOS, and every XOS function is a subadditive set function. See also: Utility functions on indivisible goods. The term XOS stands...
    5 KB (860 words) - 20:05, 8 August 2025
  • f(S\cup T)} . Utility functions on indivisible goods Nimrod Megiddo (1988). "ON FINDING ADDITIVE, SUPERADDITIVE AND SUBADDITIVE SET-FUNCTIONS SUBJECT TO...
    1 KB (164 words) - 07:38, 7 August 2024
  • Pseudo-Boolean function Topkis's theorem Submodular set function Superadditive Utility functions on indivisible goods Topkis, Donald M., ed. (1998). Supermodularity...
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  • In economics, gross substitutes (GS) is a class of utility functions on indivisible goods. An agent is said to have a GS valuation if, whenever the prices...
    13 KB (2,334 words) - 21:55, 23 May 2025
  • An additive utility function is characteristic of independent goods. For example, an apple and a hat are considered independent: the utility a person receives...
    2 KB (289 words) - 22:58, 21 April 2024
  • function Utility functions on indivisible goods Feige, Uriel (2009). "On Maximizing Welfare when Utility Functions are Subadditive". SIAM Journal on Computing...
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  • equilibrium with that assignment. In the case of indivisible item assignment, when the utility functions of all agents are GS (and thus an equilibrium exists)...
    22 KB (3,837 words) - 14:48, 24 June 2024
  • Pareto efficient social choice function must be a linear combination of the utility functions of each individual utility function (with strictly positive weights)...
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  • used to attain exact fairness of indivisible goods. Corradi and Corradi define an allocation as equitable if the utility of each agent i (defined as the...
    16 KB (2,063 words) - 00:35, 13 July 2025
  • good as the bundle of any other agent.: 296–297  Since the items are indivisible, an EF assignment may not exist. The simplest case is when there is a...
    28 KB (3,729 words) - 07:39, 16 July 2024
  • , … , x n ′ } {\displaystyle \{x_{1}',\dots ,x_{n}'\}} where, for utility function u i {\displaystyle u_{i}} for each agent i {\displaystyle i} , u i...
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  • additive utilities. They show that a fractional CE (where some goods are divided) can always be rounded to an integral CE (where goods remain indivisible), by...
    20 KB (2,899 words) - 19:01, 28 May 2025
  • agents' utility functions. Concavity: the most general assumption (made by Fisher and Arrow&Debreu) is that the agents' utilities are concave functions, i...
    29 KB (4,380 words) - 20:06, 8 August 2025
  • Budget-additive valuation (category Utility function types)
    USA: ACM. pp. 459–460. arXiv:1609.06654. doi:10.1145/3033274.3085109. ISBN 978-1-4503-4527-9. S2CID 14525165. Utility functions on indivisible goods...
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  • (2018). "Fair Allocation of Indivisible Goods: Improvements and Generalizations". Proceedings of the 2018 ACM Conference on Economics and Computation....
    25 KB (3,593 words) - 14:40, 21 February 2025
  • Thumbnail for Multi-issue voting
    allocation of indivisible public goods (FAIPG), society has to choose a set of indivisible public goods, where there is are feasibility constraints on what subsets...
    47 KB (6,450 words) - 17:17, 27 July 2025
  • the valuations of the bidders – they may have arbitrary utility functions on indivisible goods. In contrast, if all auctions are done simultaneously, a...
    15 KB (2,315 words) - 20:15, 16 April 2024
  • Responsive set extension (category Utility function types)
    Y|y\succeq z\}|} The AU extension is based on the notion of an additive utility function. Many different utility functions are compatible with a given ordering...
    9 KB (1,664 words) - 06:28, 2 May 2024
  • procedure for fair item allocation. It can be used to allocate several indivisible items among several people, such that the allocation is "almost" envy-free:...
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  • Gross substitutes (category Utility function types)
    includes both substitute goods and independent goods, and only rules out complementary goods. See Gross substitutes (indivisible items). Polterovich, V...
    1 KB (177 words) - 14:37, 23 September 2016
  • Thumbnail for Fair division
    dividing a set of indivisible heterogeneous goods (e.g., rooms in an apartment), and simultaneously a homogeneous divisible bad (the rent on the apartment)...
    20 KB (3,076 words) - 23:14, 19 June 2025
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    assignment by chance, are also used, particularly in cases involving indivisible goods or when deterministic solutions are difficult to implement. In some...
    30 KB (4,312 words) - 02:36, 5 July 2025
  • Thumbnail for Trademark
    protecting Coca-Cola's packaging design. The primary function of a trademark is to identify the source of goods or services and prevent consumers from confusing...
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  • Explanation When goods are indivisible, a coalitional game can be set up so that a utility function can be defined on all subsets of the goods. Hu (2020) shows...
    40 KB (4,978 words) - 02:54, 2 August 2025