Tuesday, 8 February 2011

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What do the punters predict?


Paddy Powers have now priced odds on every candidate in each constituency in the country. It's a short step to converting those odds to probabilities and ranking them to determine the winners of each seat in each constituency, the aggregation of which obviously equals the makeup of the 31st Dail.


The below is not a poll, nor does it pretend to be. Its margin of error can be qualified (below), but not quantified. It is an extrapolation of one company’s prediction of each candidates chances of election, based on an unclear division of that company’s own take on individual constituencies and the betting patterns of its customers. The extrapolation that the candidates with the shortest odds will have the highest probability of being elected depends on the following:

- Paddy Power’s overriding interest is in pricing each candidate as fairly as possible to reduce its downside risk, rather than altering the odds to reflect any corporate bias. They may have taken various polls into consideration in determining pricing, in which case this result may be, at worst, seen as a poll of polls. However, the predominant determining factor in making up the odds is therefore presumed to be betting patterns.

- Those likely to bet on politics are more likely to be those with heavy involvement or at least a deep interest in politics, by definition omitting a large % of the electorate. The odds would therefore be seen as representative of what existing FF / FG/ Labour supporters, etc make of their own chances in a constituency by constituency basis, rather than the views of the electorate as a whole.

- Parties members are more likely to view their own outcome favourably. If the overall odds are the sum of the individual bets, then the odds of parties with a larger traditional base (ie more people betting for their party) are more likely to overstated, and vice vearsa. This might suggest that FF/FG seats are too short and Labour, Greens and smaller party odds too long.

- The same argument could be made of a historical bias – FF punters can see a collapse, but not a wipeout because of the way it’s always been, Labour punters conversely can predict a growth, but not an eruption. The views of the electorate on polling day may make a mockery of either predisposition.

- That said, the fact that money is put down induces a certain level of honesty - and the aggregation of the political wisdom of the politicos in individual constituencies, with their grassroots familiarity with local loyalties is probably as accurate a predictor of the outcome of each constituency than a centrally conducted random sample poll.

- Despite the above health warnings, it is illuminating in a way that many polls are not. It predicts who will be elected, which is what ultimately matters, rather than the first pref tally, and extrapolating swings from that. It shows which seats are safe and where the battles will most likely happen, and the level of margin between candidates– much of this is already known, but this collates it and quantifies it.

Enough health warnings - down to results as of 7th Feb:


Party

Predicted no. of seats

No. of runners up

Topping poll

FG

68

6

23

FF

33

17

3

Lab

36

15

13

SF

13

3

2

Green

0

0

0

ULA

3

1

0

Others

13

1

2

Connaught

Dublin

Leinster

Munster

Ulster

FG

11

14

17

22

4

FF

5

5

11

9

3

Lab

1

16

11

8

0

SF

0

6

2

1

4

Green

0

0

0

0

0

ULA

0

3

0

0

0

Others

3

3

1

6

0

Constituency by constituency

Percentages represent the difference in probability of election between the last seat and the first runner up – deeper the colour, more intense the likely struggle

Constituency

Province

Candidates

Seats

1

2

3

4

5

6

Runner up 1

Runner up 2

Roscommon South Leitrim

Connaught

9

3

FG

FG

FF

2%

Others

SF

Sligo North Leitrim

Connaught

11

3

FG

FG

FF

3%

SF

Lab

Galway East

Connaught

12

4

FG

FF

FG

Others

30%

Lab

FG

Galway West

Connaught

16

5

FF

FG

Others

Lab

Others

3%

FG

Mayo

Connaught

13

5

FG

FG

FF

FG

FG

16%

Lab

Dublin North Central

Dublin

8

3

FG

Others

Lab

27%

FF

FG

Dublin North East

Dublin

10

3

FG

Lab

SF

23%

Lab

FF

Dublin North West

Dublin

12

3

Lab

SF

Lab

4%

FF

FG

Dublin Central

Dublin

13

4

Lab

Others

FG

SF

19%

FF

Lab

Dublin Mid-West

Dublin

10

4

Lab

FG

FG

SF

3%

FF

Lab

Dublin North

Dublin

10

4

FG

Lab

ULA

FF

0%

FF

Green

Dublin South East

Dublin

12

4

Lab

FG

Lab

FG

12%

FF

Others

Dublin South West

Dublin

7

4

FG

Lab

Lab

SF

11%

FF

FF

Dublin West

Dublin

9

4

Lab

FG

ULA

FF

39%

Lab

FG

Dun Laoghaire

Dublin

10

4

Lab

FG

ULA

FF

8%

Lab

FF

Dublin South

Dublin

11

5

Lab

FG

FG

Others

FF

12%

Lab

Dublin South Central

Dublin

11

5

FG

Lab

SF

Lab

FF

10%

ULA

Kildare South

Leinster

7

3

FG

Lab

FF

5%

FF

Others

Meath East

Leinster

6

3

FG

Lab

FF

47%

FG

FF

Meath West

Leinster

9

3

FG

FF

Lab

8%

SF

FG

Kildare North

Leinster

11

4

Lab

FG

Others

FF

8%

Lab

FG

Longford Westmeath

Leinster

10

4

Lab

FG

FG

FF

17%

FF

Lab

Carlow Kilkenny

Leinster

14

5

FG

FF

Lab

FG

Lab

7%

FF

Laois Offaly

Leinster

13

5

FG

FF

SF

FF

FG

12%

FG

Louth

Leinster

11

5

FG

SF

Lab

FF

FG

14%

FF

Wexford

Leinster

10

5

Lab

FG

FG

FF

FF

9%

Lab

Wicklow

Leinster

16

5

FG

Lab

Lab

FG

FG

0%

FF

Cork North West

Munster

9

3

FG

FF

FG

4%

FG

Lab

Cork South West

Munster

11

3

Lab

FG

FG

11%

FG

FF

Kerry North

Munster

5

3

FG

SF

Lab

54%

FF

FG

Kerry South

Munster

7

3

Others

FG

Others

11%

Lab

FF

Limerick

Munster

6

3

FG

FF

FG

27%

Lab

Others

Tipperary North

Munster

7

3

Others

Lab

FG

22%

FF

SF

Tipperary South

Munster

8

3

FG

Others

Others

25%

FF

Lab

Clare

Munster

12

4

FG

FG

FF

Others

16%

Lab

FG

Cork East

Munster

10

4

Lab

FG

FG

FF

11%

SF

FF

Cork North Central

Munster

13

4

Lab

FF

FG

FG

5%

Lab

SF

Limerick City

Munster

9

4

FF

FG

Lab

FG

21%

Lab

SF

Waterford

Munster

10

4

FG

FG

FF

Lab

29%

Lab

Others

Cork South Central

Munster

12

5

FF

FG

Lab

FG

FF

8%

FG

Donegal North East

Ulster

7

3

FG

SF

FF

55%

Lab

FG

Donegal South West

Ulster

7

3

SF

FG

FF

57%

FF

Others

Cavan Monaghan

Ulster

13

5

SF

FG

FF

SF

FG

27%

FF

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