Week 2 projection map |
The Quebec election campaign is now in
its second week, so it's now time to present my Week 2 projection
map. For this map, I have tweaked my projection model to take into
account two important factors that effect riding-level election
results: a lack of incumbency and the presence of a party leader on the
ballot.
The Quebec election will feature at
least 14 seats with no incumbents (open seats). The results in these seats will no
doubt have different trends in their results than seats that do have
incumbents. In taking a look at open seats in the 2012 election, I
noticed that the parties that saw a positive 2008-2012 swing across
the province (i.e. CAQ [compared to the ADQ in 2008] and QS) saw an even
stronger swing in open seats compared to seats with incumbents. Likewise, parties that
saw a negative swing between the 2008 and 2012 elections saw stronger
swings against them in open seats. The difference between the
province-wide swing and the open-seat swing for all parties showed a
similar ratio, averaging to be about 1:1.23. That is, for every
1% a party's share of the vote would swing in either direction
province wide, their swing in an open seat would be 1.23%. For my
model, I applied this ratio to the parties in each of the 14 seats that will have no incumbent on the ballot.
The second major tweak I applied to my
model was the “leader bounce”. Liberal leader Philippe Couillard
is running in the normally-safe PQ seat of Roberval. Couillard, being
a leader of a major party in the province, is likely to see a large
swing towards him on election day. To estimate how much of a swing he
will get, I took a look at similar scenarios from the 2012 election.
One similar-ish scenario was in the riding of L'Assomption where CAQ
leader Francois Legault was running in. In L'Assomption, Legault was
able increase the share of the CAQ vote (compared to its predecessor,
the ADQ) by 23.7 points. This was much higher than the province-wide
swing to the CAQ, which was 10.7%. Another similar-ish example was
in the riding of Nicolet-Becancour, where Option Nationale leader
Jean-Martin Aussant was running. Option Nationale didn't run in the
2008 election, so I compared his result to what Quebec Solidaire won
in 2008, since they didn't run in Nicolet-Becancour out of courtesy
to Aussant. Comparing the two results gave Aussant a 22% swing, a
full 20.1% more than the province wide swing for the Opinin Nationale
(which was from 0% in 2008 because they didn't exist for that
election). I make the assumption that in both cases (for Legault and
Aussant) that their swings were also inflated because Legault was
running in an open seat, and Aussant was the incumbent in his riding
(he was elected as Pequiste in 2008). To calculate the estimated boost that
Couillard could get, I took the average swing above the province-wide
swing in both cases, and reduced it to factor in the fact that Couillard
will be running in a seat that already has an incumbent, PQ MNA Denis
Trottier.
I also created a second “leader
bounce” estimate for Quebec Solidaire co-spokesperson Andres
Fontecilla who is running in the Montreal riding of Laurier-Dorion.
For most of its history, Quebec Soildaire was led by both Amir Khadir
and Francoise David as "co-spokespeole". However, their party
constitution states that only one co-spokesperson can sit in the
National Assembly, so when both Khadir and David were elected in
2012, Khadir stepped down as co-spokesperson, and was replaced by
Fontecilla. Fontecilla will likely see a boost in his share of the vote
in Laurier-Dorion, much like Khadir and David saw in their ridings over the last two election. The question is, how much will Fontecilla's boost be? To calculate this, I took a look at
the average swing that both Khadir and David saw in 2008 and 2012 in
their ridings and compared it to the QS province-wide swing in both
elections. Their swing came out to be an increase of about 8.1%, with
an average of 5.5% coming from the PQ and 2.3% coming from the
Liberals (the rest coming from minor parties). To calculate what
Fontecilla may get on election day, I used these averages to factor
in my projection for Laurier-Dorion.
In Roberval, my tweaks pushed Couillard
into a narrow lead over his PQ opponent. In Laurier-Dorion, my
projection tweaks put Fontecilla in a close race with Liberal MNA
Gerry Sklavounos, however I still have Sklavounos ahead. The other
projection tweaks I made for the open seats didn't result in much
change, however they could play a factor if polls change
dramatically.
Outside of these tweaks, I also
inputted three new polls into my projection. Forum Research released
a poll last week, and CROP released a poll on Monday. In addition,
Leger published a Quebec City regional poll this morning. Forum
Research's regional breakdowns divided the Rest of Quebec region into
“North Shore” and “South Shore” which I can assume refers to
whether or not the respondent was north or south of the Saint
Lawrence River. Because of this, I have also split my projection model "rest of Quebec" region into two. CROP unfortunately did not publish their regional
breaks, so I divided their results proportionally based on the Leger
poll from earlier in the campaign and the Forum poll. For my
projection, I have included both the Forum Research and CROP polls,
the Leger Quebec City poll from today, and the Leger poll I used last
week, but replacing their Quebec City numbers with their new poll.
Changes from my last map
The biggest change
from last week came in the Quebec City region, where my projection
shows three seats swinging towards the Liberals. My projection now
shows the Liberals ahead in Chauveau and La Peltrie (both from CAQ)
and ahead in Jean-Talon (from the PQ). Outside the Quebec City
region, I have the Liberals now ahead in Maskinonge, Papineau and
Roberval (the latter based on the aforementioned projection tweak).
In all three of those ridings, my projection from last week had the
PQ ahead. One further change came in Megantic, where my projection
last week had the Liberals winning, but now shows the PQ ahead.
With these changes, the PQ still is sitting in majority territory, but just barely- with 64 seats in the 125 seat assembly. 63 seats are needed to win a majority.
With these changes, the PQ still is sitting in majority territory, but just barely- with 64 seats in the 125 seat assembly. 63 seats are needed to win a majority.
Here are my Week 2 seat-by seat projections (ridings coloured by 2012 winner):
I plan on making further tweaks to my model as the campaign goes on. If you have any suggestions as to what tweaks I should make, please let me know, by commenting here, emailing me, or by sending me a message on Twitter.
Really interesting analysis.
ReplyDeleteThere are some ridings, however, that have no candidate running for one or more of the main parties. If this continues, how would that factor into the detailed analysis? Also in Lapiniere wher the PQ has said it is not running a party but there is a hi profile independent candidate, how would that break down?
Hi, thanks for your comment. When the nomination period has ended, (March 22), I will make modifications to reflect ridings where parties aren't running candidates. I am aware that the PQ will not be running in La Piniere, and that will be discussed in my next blog post.
ReplyDelete