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DEM Council Member_2nd Council District (NYC; 2021-06-22)

🔗 2021-06-22_NYC-PE2021_CVR_Final-DEM_Council_Member_2nd_Council_District     (tags: { 2021 , from-bolson , actual , NY , NYC-2021 , NYC_NY , 2021-06 })

Below is the ABIF from the "2021-06-22_NYC-PE2021_CVR_Final-DEM_Council_Member_2nd_Council_District" election (DEM Council Member_2nd Council District (NYC; 2021-06-22))

ABIF submission area (show)
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Voting methods: IRV • FPTP • approval • STAR • Pairwise • All methods

Results

🔗https://abif.electorama.com/id/2021-06-22_NYC-PE2021_CVR_Final-DEM_Council_Member_2nd_Council_District

Below are the results of the election represented above using various election methods with abiftool/abiflib. The detected ballot type from the ABIF above is "ranked". Some methods may transform these ballots for analysis; see method notices for details. Resubmit the ABIF with "Transform ballots" turned off to minimize the transformations.

Method Winner
IRV/RCV Carlina Rivera
FPTP Carlina Rivera
Approval Carlina Rivera
STAR Carlina Rivera
Condorcet/Copeland Carlina Rivera
Election results summary showing voting method winners
click/tap to expand
tabbed view

IRV/RCV results

2021-06-22_NYC-PE2021_CVR_Final-DEM_Council_Member_2nd_Council_District IRV/RCV result permalink:
🔗https://abif.electorama.com/id/2021-06-22_NYC-PE2021_CVR_Final-DEM_Council_Member_2nd_Council_District/IRV#IRV

  • IRV/RCV Winner: Carlina Rivera with 15,492 votes (72.9%) in final round
  • Runner-up: Erin Hussein with 5,747 votes (27.1%) in final round
  • Exhausted ballots in final round: 0 (0.0%)
  • Number of rounds: 1
  • Ballots counted in final round: 21,239 (100.0%)
  • Majority of ballots: 10,620 (50.0%)
  • Total ballots: 21,239
Round 1
Overview:
Active ballots: 21,239 (100.0%)

Exhausted ballots: 0 (0.0%)
Counted ballots: 21,239 (100.0%)
IRV/RCV winner:
Carlina Rivera: 15,492 (72.9%)✅
→
Erin Hussein: 5,747 (27.1%) (🛑eliminated)
→

FPTP result

"FPTP" is "First-past-the-post", also known as "plurality" or "choose-one"
2021-06-22_NYC-PE2021_CVR_Final-DEM_Council_Member_2nd_Council_District FPTP results permalink:
🔗https://abif.electorama.com/id/2021-06-22_NYC-PE2021_CVR_Final-DEM_Council_Member_2nd_Council_District/FPTP#FPTP
📝
Note — Only using first-choices on ranked ballots

  • FPTP Winner: Carlina Rivera with 15,492 first-place votes (72.9%)
  • Runner-up: Erin Hussein with 5,747 first-place votes (27.1%)
  • Margin of victory: 9,745 votes (45.9 percentage points)
  • First-place votes
    • Carlina Rivera: 15,492 votes (72.9 %)
    • Erin Hussein: 5,747 votes (27.1 %)
  • Total ballots: 21,239

Approval voting results

2021-06-22_NYC-PE2021_CVR_Final-DEM_Council_Member_2nd_Council_District approval voting results permalink:
🔗https://abif.electorama.com/id/2021-06-22_NYC-PE2021_CVR_Final-DEM_Council_Member_2nd_Council_District/approval#approval
📝
Note — Approval counts estimated from 21,239 ranked ballots using favorite_viable_half method
Details

The 'favorite_viable_half' conversion algorithm: find the candidate with the most first preferences, and then determine the minimum number of figurative seats that would need to be open in order for the candidate to exceed the Hare quota with the given first-prefs. We use this to estimate how many candidates are likely to be viable candidates.

Using first-choice vote totals as a rough guide, approximately 2 candidates appear viable: Carlina Rivera and Erin Hussein. The approximation then assumes each voter approves up to 1 of their top-ranked viable candidates (half of 2). All candidates ranked at or above the lowest-ranked of each ballot's top viable candidates receive approval (considering up to 1 viable candidates per ballot).

See transformed ballots

Note: For Approval, these choose_many ballots are inferred from ranked ballots.

Conversion method: favorite_viable_half

#------- metadata -------
{ballotcount: 21239}
{version: "0.1"}
{ballotcount_abif_metadata: "21239"}
{is_ranking_to_rating: true}
#------ candlines ------
=[Carlina Rivera]:[Carlina Rivera]
=[Erin Hussein]:[Erin Hussein]
#------- votelines ------
9942:[Carlina Rivera]/1
5257:[Carlina Rivera]/1
3188:[Erin Hussein]/1
2413:[Erin Hussein]/1
107:[Carlina Rivera]/1
86:[Carlina Rivera]/1
60:[Carlina Rivera]/1
58:[Erin Hussein]/1
40:[Carlina Rivera]/1
38:[Erin Hussein]/1
32:[Erin Hussein]/1
18:[Erin Hussein]/1
  • Approval Winner: Carlina Rivera
  • Approval Results:
    • Carlina Rivera — 15,492 approvals (72.94% of ballots) (✅ winner)
    • Erin Hussein — 5,747 approvals (27.06% of ballots)
  • Total: 21,239 ballots (21,239 total approvals)

STAR results

2021-06-22_NYC-PE2021_CVR_Final-DEM_Council_Member_2nd_Council_District STAR results permalink:
🔗https://abif.electorama.com/id/2021-06-22_NYC-PE2021_CVR_Final-DEM_Council_Member_2nd_Council_District/STAR#STAR
📝
Note — STAR ratings estimated from ranked ballots using Borda scoring method
Details

The ranked ballots have been converted to STAR ratings using Borda scoring: each candidate receives points equal to (number_of_candidates - their_rank). In this election, we have 2 candidates, so the 1st choice gets 1 points, the 2nd choice gets 0 points, etc. These Borda scores are then used as STAR ratings for tabulation by STAR.

  • STAR winner: Carlina Rivera
  • Finalists: Carlina Rivera vs Erin Hussein
  • Runoff result:
    • Carlina Rivera: 15,492 votes (72.9%)
    • Erin Hussein: 5,747 votes (27.1%)
    • No preference: 0 voters (0.0%)
  • Total stars allocated: 21,239
  • Total ballots: 21,239
★★★★★★

★★★★★

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(one star above is approximately 425 stars allocated by voters)
  • First round:
    • ★#0: Carlina Rivera received 15,492 stars (72.9%) from 15,492 voters (72.9%)
    • ★#1: Erin Hussein received 5,747 stars (27.1%) from 5,747 voters (27.1%)
  • Finalists:
    • ★Carlina Rivera (✅ winner) preferred by 15,492 of 21,239 voters
    • ★Erin Hussein preferred by 5,747 of 21,239 voters
    • ★No preference between the finalists: 0

NOTE: Since ratings or stars are not present in the provided ballots, allocated stars are estimated using a Borda-like formula.

Condorcet/Copeland results

2021-06-22_NYC-PE2021_CVR_Final-DEM_Council_Member_2nd_Council_District Condorcet/Copeland results permalink:
🔗https://abif.electorama.com/id/2021-06-22_NYC-PE2021_CVR_Final-DEM_Council_Member_2nd_Council_District/pairwise#pairwise
  • Winner: Carlina Rivera
  • Runner-up: Erin Hussein (beats all other candidates except Carlina Rivera)
  • Smallest margin: Carlina Rivera over Erin Hussein (15,492-5,747; margin: 9,745)
  • Largest margin: Carlina Rivera over Erin Hussein (15,492-5,747; margin: 9,745)
  • Pairwise ties: none
  • Total ballots: 21,239

Win-loss-tie (Condorcet/Copeland) table

2021-06-22_NYC-PE2021_CVR_Final-DEM_Council_Member_2nd_Council_District w-l-t table permalink:
🔗https://abif.electorama.com/id/2021-06-22_NYC-PE2021_CVR_Final-DEM_Council_Member_2nd_Council_District/pairwise#wlt
DEM Council Member_2nd Council District (NYC; 2021-06-22) pairwise matchups
Carlina Rivera
(1-0-0)
Carlina Rivera
1 victory ⇣
Erin Hussein
(0-1-0)
Carlina Rivera: 15,492(72.9%)
Erin Hussein: 5,747(27.1%)
(No preference: 0; 0.0%)

Pairwise tournament (Copeland ordered)

2021-06-22_NYC-PE2021_CVR_Final-DEM_Council_Member_2nd_Council_District pairwise diagram permalink:
🔗https://abif.electorama.com/id/2021-06-22_NYC-PE2021_CVR_Final-DEM_Council_Member_2nd_Council_District/pairwise#dot

%3 Carlina Rivera Carlina Rivera 1-0-0 (1 wins, 0 losses, 0 ties) Erin Hussein Erin Hussein 0-1-0 Carlina Rivera->Erin Hussein ← Carlina Rivera: 15492 Erin Hussein: 5747

Voting methods: IRV • FPTP • approval • STAR • Pairwise • All methods

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