Instant Runoff and
Self-Apportionment
A DemoChoice project

IRSA builds on traditional Single Transferable Vote methods to provide:
  • Satisfactory representation for everyone
  • Majority rule
  • Well-defined constituencies
  • Minimal ballot slicing
Create your own poll or view tallies of historical and test elections.

NOTE: IRSA is evolving software. Please notify us if you encounter anything strange!
More polls (show all) Vote Results
Cambridge, MA 2005 City Council Election Vote Bars
Cambridge, MA 2005 School Committee Election Vote Bars
IRSA small test poll Vote Bars
Favorite California Parks and Natural Areas Vote Bars
See the directory of all polls

IRSA builds upon Warren's version of the Single Transferable Vote method, which has many of the advantages of Meek's method, while keeping to a minimum the number of times a ballot is split between candidates. IRSA differs by preventing votes for winners from ending up in the "exhausted" pile, resulting in higher winning thresholds and more votes counting for winners than Meek or Warren. IRSA ensures that all losers are eliminated, so that all votes are assigned to a winner, to the extent possible. It performs further transfers once all winners are determined so that they have a more equal mandate. IRSA avoids the use of floating-point math and rounding by giving each voter a specific number of votes (which can also be represented as fractions of one vote). The combined features make hand counts feasible. Read an article (pdf) describing the details and arguments for it.

Favorite California Parks and Natural Areas
(Rank the candidates you support!)
4 candidates will be elected.
[add/drop] Lost Coast
[add/drop] Lassen/Lava Beds
[add/drop] Sequoia/Kings Canyon
[add/drop] Big Sur
[add/drop] Redwood
[add/drop] Yosemite
[add/drop] Pt. Reyes
[add/drop] Lake Tahoe
[add/drop] Pinnacles
[add/drop] Death Valley
[add/drop] Mt. Shasta
[add/drop] Joshua Tree
| how it works | view results |
Try the less fancy ballot if this one fails.
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|  Create your own poll |  Learn more about how IRSA works |  The IRSA source code will be released soon. |

DemoChoice ©2001 Dave Robinson
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