Counting Single Transferable Votes - Quota - Droop Quota

Droop Quota

The most common quota formula is the Droop quota which given as:

The Droop Quota

Droop produces a lower quota than Hare. If each ballot has a full list of preferences, Droop guarantees that every winner meets the quota rather than being elected as the last remaining candidate after lower candidates are eliminated. The fractional part of the resulting number, if any, is dropped (the result is rounded down to the next whole number.)

It is only necessary to allocate enough votes to ensure that no other candidate still in contention could win. This leaves nearly one quota's worth of votes unallocated, but counting these would not alter the outcome.

Droop is the only whole-number threshold for which (a) a majority of the voters can be guaranteed to elect a majority of the seats when there is an odd number of seats; (b) for a fixed number of seats.

Each winner's surplus votes transfer to other candidates according to their remaining preferences. Meek's counting method recomputes the quota on each iteration of the count.

Read more about this topic:  Counting Single Transferable Votes, Quota

Famous quotes containing the words droop and/or quota:

    And by another year,
    Such as God knows, with freer air,
    More fruits and fairer flowers
    Will bear,
    While I droop here.
    Henry David Thoreau (1817–1862)

    Some are petitioning the State to dissolve the Union, to disregard the requisitions of the President. Why do they not dissolve it themselves,—the union between themselves and the State,—and refuse to pay their quota into its treasury? Do not they stand in the same relation to the State that the State does to the Union? And have not the same reasons prevented the State from resisting the Union which have prevented them from resisting the State?
    Henry David Thoreau (1817–1862)