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Intuitively, unrestricted domain is a common requirement for social choice functions, and is a condition for Arrow's impossibility theorem. With unrestricted domain, the social welfare function accounts for all preferences among all voters to yield a unique and complete ranking of societal choices.
Arrow's theorem assumes as background that any non-degenerate social choice rule will satisfy: [15]. Unrestricted domain — the social choice function is a total function over the domain of all possible orderings of outcomes, not just a partial function.
Unrestricted generic top-level domains are those domains that are available for registration by any person or organization for any use. The prominent gTLDs in this group are com, net, org, and info. However, info was the only one of these, and the first, that was explicitly chartered as unrestricted. The others initially had a specific target ...
Universal (Unrestricted) Domain U (subsequently so called): Every logically possible set of orderings maps to its own social ordering. Each voter is permitted by the constitution to rank the set of social states in any order, though with only one ordering per voter for a given set of orderings.
Intuitively, unrestricted domain is a common requirement for social choice functions, and is a condition for Arrow's impossibility theorem. With unrestricted domain, the social welfare function accounts for all preferences among all voters to yield a unique and complete ranking of societal choices.
Info is an unrestricted domain, meaning that anyone can obtain a second-level domain for any purpose, similar to the domains com, net and org. This is in contrast to TLDs such as edu, or coop. Info is the only top-level domain that was explicitly created and chartered for unrestricted use, although various other TLDs resulted in this situation ...
If there are at least three alternatives, dictatorship is the only ranked voting rule that satisfies unrestricted domain, Pareto efficiency, and independence of irrelevant alternatives. Similarly, by Gibbard's theorem, when there are at least three candidates, dictatorship is the only strategyproof rule.
Unrestricted domain This page was last edited on 25 December 2023, at 21:14 (UTC). Text is available under the Creative Commons Attribution-ShareAlike 4.0 ...