[EM] Min Reluctance Range DSV

fsimmons at pcc.edu fsimmons at pcc.edu
Sat May 22 16:04:04 PDT 2010


Here's a proposal based on ideas gleaned from a recent discussion on this list:

Inputs are range ballots.

For each alternative X tentative approval ballots are formed from the range
ballots as follows:

The alternative X is used as the approval cutoff.  On some of the ballots the
cutoff is considered excluded (not including X as approved) but on just enough
ballots to make X the approval winner, the cutoff is considered inclusive (so on
these ballots X is approved). 

The "reluctance" of ballot B in approving X is the difference between the
maxrange value and the rating given to alternative X by ballot B.

Elect the alternative X with the least possible reluctance total.

In other words, find the alternative that requires the least total reluctant
approval to become approval winner, and convert the range values to approval
ballots using the minimum number of reluctant approvals of X to make X win.

Then publish the approval totals, the total reluctance required to get X
elected, and also for each of the other alternatives publish the voters' total
reluctance at electing it.

This method is summable.

Unlike most DSV methods it is monotone.

Does it satisfy consistency?

Thanks,

Forest



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