# range voting

## Primary tabs

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\title{Range voting}
\author{Warren D. Smith}

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%A short introduction to range voting.
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\emph{Range voting}
is a single-winner voting system in which each vote consists of one numerical score
from 0 to U awarded to each candidate,
where U is some positive number.
In \emph{single-digit range voting} U is 9,
while \emph{two-digit range voting} has U=99.
(One could also consider permitting the interval to be, e.g. $[-10, 10]$.)
The candidate with the highest average score wins.
In a common variant, X'' scores also are permitted for candidates
(meaning:I wish to express no opinion about this candidate'').
For example  (46,0,32,99)  could be one vote in a 4-candidate two-digit range voting

{\bf Approval voting} \cite{BramsFAV} is the degenerate form of range voting in which
there are only two allowed scores:  0 and 1.

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\bibitem{BramsFAV}
S.J. Brams \& P. Fishburn:  Approval voting, Birkhauser 1983.

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