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...
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(higher-order function) Group by (SQL), SQL clause OLAP cube Online analytical processing Pivot table Relational algebra Utility functions on indivisible goods#Aggregates...
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utility functions of divisible goods. These functions are commonly used as examples in consumer theory. The functions are ordinal utility functions,...
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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...
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Fair item allocation (redirect from Indivisible goods allocation)
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:...
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game theory (as functions modeling user preferences) and electrical networks. Recently, submodular functions have also found utility in several real world...
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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...
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f(S\cup T)} . Utility functions on indivisible goods Nimrod Megiddo (1988). "ON FINDING ADDITIVE, SUPERADDITIVE AND SUBADDITIVE SET-FUNCTIONS SUBJECT TO...
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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...
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An additive utility function is characteristic of independent goods. For example, an apple and a hat are considered independent: the utility a person receives...
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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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Competitive equilibrium (section Indivisible items)
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)...
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Utilitarian rule (section Tangible utility functions)
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...
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Envy-free item allocation (section EFm - approximate envy-free for a mixture of divisible and indivisible items)
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...
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, … , 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...
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agents' utility functions. Concavity: the most general assumption (made by Fisher and Arrow&Debreu) is that the agents' utilities are concave functions, i...
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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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List of unsolved problems in fair division (section Open problems in fair allocation of indivisible items)
(2018). "Fair Allocation of Indivisible Goods: Improvements and Generalizations". Proceedings of the 2018 ACM Conference on Economics and Computation....
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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...
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the valuations of the bidders – they may have arbitrary utility functions on indivisible goods. In contrast, if all auctions are done simultaneously, a...
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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...
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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...
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dividing a set of indivisible heterogeneous goods (e.g., rooms in an apartment), and simultaneously a homogeneous divisible bad (the rent on the apartment)...
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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...
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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...
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