Sebastián Vallejo Vera
@svallejovera.bsky.social
Assistant Professor at Western University | Legislative politics, gender and politics, racism and politics, and NLP (and politics). http://svallejovera.com
Pinned
LLMs as annotators: the effect of party cues on labelling decisions by large language models
Humanities and Social Sciences Communications - LLMs as annotators: the effect of party cues on labelling decisions by large language models
rdcu.be
Just *published* our paper with @westernupolisci.bsky.social PhD student, Hunter Driggers, on LLM bias from party cues in annotation tasks. We extend a previous study showing annotation bias from human coders in the presence of party cues… LLM show similar bias 🧵:
rdcu.be/eIKCj
rdcu.be/eIKCj
Reposted by Sebastián Vallejo Vera
📢 Apply now! @westernu.ca Political Science offering MA & PhD Fellowship w/ Drs. Alcantara & Stephenson’s @sshrc-crsh.canada.ca project on “The Determinants of Public Support for Indigenous Reconciliation Policies”🪶 Deadline: Feb 1, 2026
#WesternU #Reconciliation #Research #ldnont #Grads #Indigenous
#WesternU #Reconciliation #Research #ldnont #Grads #Indigenous
November 13, 2025 at 4:52 PM
📢 Apply now! @westernu.ca Political Science offering MA & PhD Fellowship w/ Drs. Alcantara & Stephenson’s @sshrc-crsh.canada.ca project on “The Determinants of Public Support for Indigenous Reconciliation Policies”🪶 Deadline: Feb 1, 2026
#WesternU #Reconciliation #Research #ldnont #Grads #Indigenous
#WesternU #Reconciliation #Research #ldnont #Grads #Indigenous
Reposted by Sebastián Vallejo Vera
👀 Think young Canadians aren’t political? Think again. From social movements to digital activism & community impact, research shows they’re leading change in unexpected ways ⬇️Watch now or ➡️ read more: news.westernu.ca
#WesternU #WesternResearch #YouthPolitics #CanadianActivism #tiktokdebut #polisci
#WesternU #WesternResearch #YouthPolitics #CanadianActivism #tiktokdebut #polisci
Young Canadians are politically engaged — just not where you expect. Read the full story at news.westernu.ca #WesternU #WesternResearch
TikTok video by Western University
www.tiktok.com
November 10, 2025 at 3:47 PM
👀 Think young Canadians aren’t political? Think again. From social movements to digital activism & community impact, research shows they’re leading change in unexpected ways ⬇️Watch now or ➡️ read more: news.westernu.ca
#WesternU #WesternResearch #YouthPolitics #CanadianActivism #tiktokdebut #polisci
#WesternU #WesternResearch #YouthPolitics #CanadianActivism #tiktokdebut #polisci
Reposted by Sebastián Vallejo Vera
🏅We are proud to announce that William Poirier has been awarded the Dr. Harold D. Clarke Graduate Quantitative Research Methodology Fellowship for his demonstrated ability & interest in Quantitative Research Methodology. Congratulations on a well-deserved award!
#westernu #quant #research #methods
#westernu #quant #research #methods
November 10, 2025 at 6:21 PM
Reposted by Sebastián Vallejo Vera
Worried about getting into or out of the US for APSA 2026? Or about what kind of paper you can present? Today is the deadline for Canadian PSA proposals for June 2-4 at U of Ottawa. Propose a paper or a whole panel. But do it today!
👩🏽💻🧑🏽💻 @jplewis.bsky.social & team can't wait to see yr proposal pop up ⏰Submit before the day is over!
➡️ shorturl.at/AgUow
#CPSA_ACSP26
@queenspols.bsky.social @westernupolisci.bsky.social
@jlisayoung.bsky.social @mcgillpolisci.bsky.social
@devoncantwell.bsky.social @matthewlebo.bsky.social
➡️ shorturl.at/AgUow
#CPSA_ACSP26
@queenspols.bsky.social @westernupolisci.bsky.social
@jlisayoung.bsky.social @mcgillpolisci.bsky.social
@devoncantwell.bsky.social @matthewlebo.bsky.social
November 10, 2025 at 2:21 PM
Worried about getting into or out of the US for APSA 2026? Or about what kind of paper you can present? Today is the deadline for Canadian PSA proposals for June 2-4 at U of Ottawa. Propose a paper or a whole panel. But do it today!
Reposted by Sebastián Vallejo Vera
Members from the @westernu.ca Political Science department attended the 11th Annual Toronto Political Behaviour Workshop (Nov. 7-8) at the Munk School of Global Affairs & Public Policy (UofT). #cdnpoli #politicalbehaviour #workshop #grads #uoft #politicaleconomy #tpbw #western
📸credit: Inaara Savani
📸credit: Inaara Savani
November 10, 2025 at 5:14 PM
Members from the @westernu.ca Political Science department attended the 11th Annual Toronto Political Behaviour Workshop (Nov. 7-8) at the Munk School of Global Affairs & Public Policy (UofT). #cdnpoli #politicalbehaviour #workshop #grads #uoft #politicaleconomy #tpbw #western
📸credit: Inaara Savani
📸credit: Inaara Savani
Reposted by Sebastián Vallejo Vera
I'm thrilled that my book, Unity through Particularism: How Electoral Reforms Influence Parties and Legislative Behavior, is now available for pre-order through CUP and Amazon!
Let me know if you'd like an electronic copy for your class, and I'll send it to you!
www.cambridge.org/us/universit...
Let me know if you'd like an electronic copy for your class, and I'll send it to you!
www.cambridge.org/us/universit...
August 22, 2025 at 3:48 PM
I'm thrilled that my book, Unity through Particularism: How Electoral Reforms Influence Parties and Legislative Behavior, is now available for pre-order through CUP and Amazon!
Let me know if you'd like an electronic copy for your class, and I'll send it to you!
www.cambridge.org/us/universit...
Let me know if you'd like an electronic copy for your class, and I'll send it to you!
www.cambridge.org/us/universit...
Reposted by Sebastián Vallejo Vera
lol
November 6, 2025 at 4:47 AM
lol
Reposted by Sebastián Vallejo Vera
job
TENURE-TRACK ASSISTANT PROFESSOR POSITION IN HEALTH AND THE LIFE COURSE OR WORK AND THE ECONOMY
Department of Sociology, Western University
Review of applications will commence on November 6th, 2025, and will continue until the position is filled.
csn-rec.ca/job-postings...
TENURE-TRACK ASSISTANT PROFESSOR POSITION IN HEALTH AND THE LIFE COURSE OR WORK AND THE ECONOMY
Department of Sociology, Western University
Review of applications will commence on November 6th, 2025, and will continue until the position is filled.
csn-rec.ca/job-postings...
October 22, 2025 at 12:26 PM
job
TENURE-TRACK ASSISTANT PROFESSOR POSITION IN HEALTH AND THE LIFE COURSE OR WORK AND THE ECONOMY
Department of Sociology, Western University
Review of applications will commence on November 6th, 2025, and will continue until the position is filled.
csn-rec.ca/job-postings...
TENURE-TRACK ASSISTANT PROFESSOR POSITION IN HEALTH AND THE LIFE COURSE OR WORK AND THE ECONOMY
Department of Sociology, Western University
Review of applications will commence on November 6th, 2025, and will continue until the position is filled.
csn-rec.ca/job-postings...
Reposted by Sebastián Vallejo Vera
Nerds: it's time for our Calgary municipal election forecasting contest! The winner gets a free copy of my forthcoming co-edited book, City Politics in Canada. Please share widely! #yyccc
survey.ucalgary.ca/jfe/form/SV_...
survey.ucalgary.ca/jfe/form/SV_...
Qualtrics Survey | Qualtrics Experience Management
The most powerful, simple and trusted way to gather experience data. Start your journey to experience management and try a free account today.
survey.ucalgary.ca
October 19, 2025 at 3:30 AM
Nerds: it's time for our Calgary municipal election forecasting contest! The winner gets a free copy of my forthcoming co-edited book, City Politics in Canada. Please share widely! #yyccc
survey.ucalgary.ca/jfe/form/SV_...
survey.ucalgary.ca/jfe/form/SV_...
Reposted by Sebastián Vallejo Vera
The CPSA accepts proposals for full panels. Why not choose Ottawa in June instead of Boston, USA in September?
🎥Pulling back the curtain✨Meet the section heads who are crafting an unforgettable #CPSA_ACSP26 experience-They're ❤️beat of the conference!
👉🏽 shorturl.at/AgUow
@annadrake.bsky.social @joannaeveritt.bsky.social @qalbaugh.bsky.social @karenlynnbird.bsky.social @raulpachecovega.bsky.social
👉🏽 shorturl.at/AgUow
@annadrake.bsky.social @joannaeveritt.bsky.social @qalbaugh.bsky.social @karenlynnbird.bsky.social @raulpachecovega.bsky.social
October 13, 2025 at 9:34 PM
The CPSA accepts proposals for full panels. Why not choose Ottawa in June instead of Boston, USA in September?
Reposted by Sebastián Vallejo Vera
In 2024, we surveyed US scholars about how, when, why they do (or don’t!) personally participate. We find a few patterns, some differences by subfield and variation in our attitudes toward the place of personal politics in our work, especially the impacts on our credibility with the public.
#OpenAccess from @pspolisci.bsky.social -
The Political Engagement of Political Scientists: Partisans, Public Scholars, and Teachers/Pedagogues - https://cup.org/4pLx0Mn
- @pauldjupe.bsky.social, @amandafriesen.bsky.social & Jacob R. Neiheisel
#FirstView
The Political Engagement of Political Scientists: Partisans, Public Scholars, and Teachers/Pedagogues - https://cup.org/4pLx0Mn
- @pauldjupe.bsky.social, @amandafriesen.bsky.social & Jacob R. Neiheisel
#FirstView
September 30, 2025 at 4:24 PM
In 2024, we surveyed US scholars about how, when, why they do (or don’t!) personally participate. We find a few patterns, some differences by subfield and variation in our attitudes toward the place of personal politics in our work, especially the impacts on our credibility with the public.
Reposted by Sebastián Vallejo Vera
Just *published* our paper with @westernupolisci.bsky.social PhD student, Hunter Driggers, on LLM bias from party cues in annotation tasks. We extend a previous study showing annotation bias from human coders in the presence of party cues… LLM show similar bias 🧵:
rdcu.be/eIKCj
rdcu.be/eIKCj
LLMs as annotators: the effect of party cues on labelling decisions by large language models
Humanities and Social Sciences Communications - LLMs as annotators: the effect of party cues on labelling decisions by large language models
rdcu.be
September 29, 2025 at 9:04 PM
Just *published* our paper with @westernupolisci.bsky.social PhD student, Hunter Driggers, on LLM bias from party cues in annotation tasks. We extend a previous study showing annotation bias from human coders in the presence of party cues… LLM show similar bias 🧵:
rdcu.be/eIKCj
rdcu.be/eIKCj
Reposted by Sebastián Vallejo Vera
This is not entirely surprising: you train a model with huge amounts of human-created biased data, it will probably replicate this behaviour. The main takeaway here is that LLMs are biased in a very LLM way. They cling to these cues and do not self-correct (like human coders).
September 29, 2025 at 9:04 PM
This is not entirely surprising: you train a model with huge amounts of human-created biased data, it will probably replicate this behaviour. The main takeaway here is that LLMs are biased in a very LLM way. They cling to these cues and do not self-correct (like human coders).
Just *published* our paper with @westernupolisci.bsky.social PhD student, Hunter Driggers, on LLM bias from party cues in annotation tasks. We extend a previous study showing annotation bias from human coders in the presence of party cues… LLM show similar bias 🧵:
rdcu.be/eIKCj
rdcu.be/eIKCj
LLMs as annotators: the effect of party cues on labelling decisions by large language models
Humanities and Social Sciences Communications - LLMs as annotators: the effect of party cues on labelling decisions by large language models
rdcu.be
September 29, 2025 at 9:04 PM
Just *published* our paper with @westernupolisci.bsky.social PhD student, Hunter Driggers, on LLM bias from party cues in annotation tasks. We extend a previous study showing annotation bias from human coders in the presence of party cues… LLM show similar bias 🧵:
rdcu.be/eIKCj
rdcu.be/eIKCj
Reposted by Sebastián Vallejo Vera
If we set aside ad-hoc explanations, two forces stand out in shaping global development: colonial institutions and war—even if the former fails to explain Europe itself. Latin America has long tilted the debate away from the latter, but what if the real driver was war here as well?👇
Beyond Colonialism: The Long Shadow of War in Latin America’s Development
Capable states that enforce the rule of law, secure property rights, and provide public goods are prerequisites for development, but where do they originate?
cambridgeblog.org
September 29, 2025 at 2:29 PM
If we set aside ad-hoc explanations, two forces stand out in shaping global development: colonial institutions and war—even if the former fails to explain Europe itself. Latin America has long tilted the debate away from the latter, but what if the real driver was war here as well?👇
Reposted by Sebastián Vallejo Vera
Labels can impact politics. My paper @apsrjournal.bsky.social "What Happens When You Can't Check the Box?" shows when Middle Eastern & North African (MENA) Americans are excluded from identity categories, they assert MENA identity when answering relevant political questions.
doi.org/10.1017/S000...
doi.org/10.1017/S000...
What Happens When You Can’t Check the Box? Categorization Threat and Public Opinion among Middle Eastern and North African Americans | American Political Science Review | Cambridge Core
What Happens When You Can’t Check the Box? Categorization Threat and Public Opinion among Middle Eastern and North African Americans
doi.org
September 26, 2025 at 5:35 PM
Labels can impact politics. My paper @apsrjournal.bsky.social "What Happens When You Can't Check the Box?" shows when Middle Eastern & North African (MENA) Americans are excluded from identity categories, they assert MENA identity when answering relevant political questions.
doi.org/10.1017/S000...
doi.org/10.1017/S000...
Reposted by Sebastián Vallejo Vera
The New York Times
What to know about the North American summit taking place without the U.S.
As leaders of Canada and Mexico met this week to discuss trade, Professor @svallejovera.bsky.social Vallejo Vera explains what the meeting aims to accomplish.
www.nytimes.com/2025/09/18/w...
What to know about the North American summit taking place without the U.S.
As leaders of Canada and Mexico met this week to discuss trade, Professor @svallejovera.bsky.social Vallejo Vera explains what the meeting aims to accomplish.
www.nytimes.com/2025/09/18/w...
Leaders of Canada and Mexico Talk Trade and Security Without U.S.
www.nytimes.com
September 24, 2025 at 7:39 PM
The New York Times
What to know about the North American summit taking place without the U.S.
As leaders of Canada and Mexico met this week to discuss trade, Professor @svallejovera.bsky.social Vallejo Vera explains what the meeting aims to accomplish.
www.nytimes.com/2025/09/18/w...
What to know about the North American summit taking place without the U.S.
As leaders of Canada and Mexico met this week to discuss trade, Professor @svallejovera.bsky.social Vallejo Vera explains what the meeting aims to accomplish.
www.nytimes.com/2025/09/18/w...
Reposted by Sebastián Vallejo Vera
🎉Now online (open access): "Hidden Majoritarianism and Women’s Career Progression in Proportional Representation Systems" at @apsrjournal.bsky.social. @alicirone.bsky.social, @teele.bsky.social, Gary Cox, @fiva.no. www.cambridge.org/core/journal...
August 28, 2025 at 1:00 PM
🎉Now online (open access): "Hidden Majoritarianism and Women’s Career Progression in Proportional Representation Systems" at @apsrjournal.bsky.social. @alicirone.bsky.social, @teele.bsky.social, Gary Cox, @fiva.no. www.cambridge.org/core/journal...
Reposted by Sebastián Vallejo Vera
🚨New Publication🚨
Using the entire #Canadian Election Study (1965–2021), I examine voter turnout by class, education, & income over time & test whether the offerings of political parties impact these relationships.
Available #OpenAccess in @cjps-rcsp.bsky.social
#polisky
doi.org/10.1017/S000...
Using the entire #Canadian Election Study (1965–2021), I examine voter turnout by class, education, & income over time & test whether the offerings of political parties impact these relationships.
Available #OpenAccess in @cjps-rcsp.bsky.social
#polisky
doi.org/10.1017/S000...
August 25, 2025 at 7:14 PM
🚨New Publication🚨
Using the entire #Canadian Election Study (1965–2021), I examine voter turnout by class, education, & income over time & test whether the offerings of political parties impact these relationships.
Available #OpenAccess in @cjps-rcsp.bsky.social
#polisky
doi.org/10.1017/S000...
Using the entire #Canadian Election Study (1965–2021), I examine voter turnout by class, education, & income over time & test whether the offerings of political parties impact these relationships.
Available #OpenAccess in @cjps-rcsp.bsky.social
#polisky
doi.org/10.1017/S000...
Reposted by Sebastián Vallejo Vera
Comparative Politics Folks, we have a position at the University of Tennessee, Knoxville. If y'all have any questions, send word. Great collegial department in an affordable urban location, plus there's the Smokies and outdoors.
jobs.chronicle.com/job/37867857...
jobs.chronicle.com/job/37867857...
Assistant Professor of Political Science (Comparative Politics of Asia/China), Fall 2026 - Knoxville, Tennessee, United States job with University of Tennessee, Knoxville | 37867857
Description
The Department of Political Science at the University of Tennessee,
Knoxville invites applications for a tenure track...
jobs.chronicle.com
August 12, 2025 at 8:40 PM
Comparative Politics Folks, we have a position at the University of Tennessee, Knoxville. If y'all have any questions, send word. Great collegial department in an affordable urban location, plus there's the Smokies and outdoors.
jobs.chronicle.com/job/37867857...
jobs.chronicle.com/job/37867857...
Reposted by Sebastián Vallejo Vera
Stony Brook is hiring in political psychology (assistant professor). Please Share! Feel free to reach out if you have question. For more information: apply.interfolio.com/170193
August 12, 2025 at 8:01 PM
Stony Brook is hiring in political psychology (assistant professor). Please Share! Feel free to reach out if you have question. For more information: apply.interfolio.com/170193
Reposted by Sebastián Vallejo Vera
Excited to cap off the summer with a new publication coauthored with @leahellmueller.bsky.social!
We debunk the myth about the universal demand for #horserace news, offering evidence on fascinating cultural nuances on social news sharing #NewsEngagement #ElectionCoverage
ijoc.org/index.php/ij...
We debunk the myth about the universal demand for #horserace news, offering evidence on fascinating cultural nuances on social news sharing #NewsEngagement #ElectionCoverage
ijoc.org/index.php/ij...
Cultural Clicks: Why Strategic Election News Does Not Resonate the Same Across English- and Spanish-Language Media Audiences in the United States | Camaj | International Journal of Communication
Cultural Clicks: Why Strategic Election News Does Not Resonate the Same Across English- and Spanish-Language Media Audiences in the United States
ijoc.org
July 29, 2025 at 1:33 PM
Excited to cap off the summer with a new publication coauthored with @leahellmueller.bsky.social!
We debunk the myth about the universal demand for #horserace news, offering evidence on fascinating cultural nuances on social news sharing #NewsEngagement #ElectionCoverage
ijoc.org/index.php/ij...
We debunk the myth about the universal demand for #horserace news, offering evidence on fascinating cultural nuances on social news sharing #NewsEngagement #ElectionCoverage
ijoc.org/index.php/ij...
Reposted by Sebastián Vallejo Vera
We are very excited to have the brilliant @blairwelsh.bsky.social joining the Dept of Political Science @westernu.ca! Look for big things and important work in empirical IR; great for us and great for Canada!
politicalscience.uwo.ca/about_us/new...
politicalscience.uwo.ca/about_us/new...
News
Current news and announcements from the Department of Political Science at Western University.
politicalscience.uwo.ca
July 9, 2025 at 1:50 PM
We are very excited to have the brilliant @blairwelsh.bsky.social joining the Dept of Political Science @westernu.ca! Look for big things and important work in empirical IR; great for us and great for Canada!
politicalscience.uwo.ca/about_us/new...
politicalscience.uwo.ca/about_us/new...
Reposted by Sebastián Vallejo Vera
Come work with me/us!!! Happy to answer questions about our dept, Western, and Canadian academia. I absolutely love it here and highly recommend. Several of us will be at APSA and happy to meet. 🇨🇦
Political Science at Western University, Canada is searching for three tenure track assistant professors. There are two ads, one in International Politics (IR or comparative) and one in Comparative or Canadian. Ads are here: www.uwo.ca/facultyrelat...
Faculty (UWOFA)
Western University, in vibrant London, Ontario, delivers an academic and student experience second to none.
www.uwo.ca
July 28, 2025 at 10:17 PM
Come work with me/us!!! Happy to answer questions about our dept, Western, and Canadian academia. I absolutely love it here and highly recommend. Several of us will be at APSA and happy to meet. 🇨🇦