Lars Ehlers
- Professeur titulaire
-
Faculté des arts et des sciences - Département de sciences économiques
Pavillon Lionel-Groulx office C6026
Web : Google Scholar
Web : Autre site web
Affiliations
Education Programs
- Economics and Politics Fundamental and Applied Sciences
- Economics and Politics Fundamental and Applied Sciences
- Economics and Politics
- Economics and Politics
- Economics and Politics
- Economics and Politics
Courses
- ECN3565 Économie industrielle avancée
- ECN4040 Microéconomie honor
- ECN7040 Microéconomie A
- ECN70952 Séminaire de doctorat 2
Areas of Expertise
Lars Ehlers joined the Université de Montréal in 2001. He earned his PhD in Economics at the University of Maastricht in 2001, after graduating in Mathematics from the University of Aachen, in 1997.
He is an elected member of the Council of the Society for Social Choice and Welfare and a member of the Board of the Society for Economic Design.
In the 2003 SSHRC Standard Research Grants competition, his research proposal was ranked first in Canada. In 2012, the Society for Social Choice and Welfare awarded him the 6th Social Choice and Welfare Prize. He is the organizer of the Microeconomic Theory Group at CIREQ.
At present, his research deals with the manipulation of matching mechanisms on labour markets, the assignment of indivisible objects and externalities in cooperative environments.
Student supervision Expand all Collapse all
Three essays in microeconomic theory
Thèses et mémoires dirigés
/
2020
-
2020
Essays on matching and preference aggregation
Thèses et mémoires dirigés
/
2018
-
2018
Agreements with overlapping coalitions
Thèses et mémoires dirigés
/
2013
-
2013
Nouvelle approche en théorie des jeux comportementale
Thèses et mémoires dirigés
/
2012
-
2012
Fusion et groupage en différenciation verticale.
Thèses et mémoires dirigés
/
2006
-
2006
Fusion et groupage en différentiation verticale
Thèses et mémoires dirigés
/
2006
-
2006
Research projects Expand all Collapse all
Conception de marché appliquée Projet de recherche au Canada / 2025 - 2030
Lead researcher :
Lars Ehlers
Funding sources:
FRQSC/Fonds de recherche du Québec - Société et culture (FQRSC)
Grant programs:
PVXXXXXX-(SE) Programme Soutien aux équipes de recherche - Stade de développement : Nouvelle équipe
Public School Choice and Refugee Assignment: (Dynamic) Minimal Instability for Non-Unit Capacities and for Lotteries and Weak Priorities Projet de recherche au Canada / 2023 - 2029
Lead researcher :
Lars Ehlers
Funding sources:
CRSH/Conseil de recherches en sciences humaines du Canada
Grant programs:
PVXXXXXX-Subvention Savoir
Subvention de déphasage_Centre interuniversitaire de recherche en économie quantitative (CIREQ) Projet de recherche au Canada / 2020 - 2023
Co-researchers :
Laurent J. Lewis
,
Walter Bossert
,
Lars Ehlers
,
Michael Huberman
,
William J. McCausland
,
Marine Carrasco
,
Bariş Kaymak
,
Massimiliano Amarante
,
Andriana Bellou
,
Immo Schott
,
Sean Horan
,
Deniz Dizdar
,
Yves Sprumont
,
Nicolas Klein
,
Raphaël Godefroy
,
Julien Bengui
,
René Garcia
,
Vasia Panousi
,
Guillaume Sublet
,
Dovonon Prosper
,
Arijit Kumar Nandi
,
Erin Strumpf
,
Sophie Bernard
,
Robert D Cairns
,
Victoria Zinde-Walsh
,
John W Galbraith
,
Ngo Van Long
,
Russell Davidson
,
Francisco Alvarez-Cuadrado
,
Markus Poschke
,
Daniel Barczyk
,
Simon Van Norden
,
Hassan Benchekroun
,
Jorgen Hansen
,
Eferosyni Diamantoudi
,
Ming Li
,
Paul Gomme
,
Tatyana Koreshkova
,
Damba Lkhagvasuren
,
Xie Huan
,
Matthieu Chemin
,
Rohan Dutta
,
Fabian Lange
,
Jean-Marie Dufour
,
Samuel Harper
,
Adrian Vetta
,
Guy Lacroix
,
Silvia Goncalves
,
Patrick Richard
,
Taoufik Bouezmani
,
Martino Pelli
,
Markus Herrmann
,
Hafedh Bouakez
,
Wen Fang Xie
,
Pierre-Carl Michaud
,
Francesco Amodio
,
Leonardo Baccini
,
Rui Castro
,
Saraswata Chaudhuri
,
Laura Lasio
,
Francisco Ruge
,
Nathan Yang
,
Hiroki Watanabe
Funding sources:
FRQSC/Fonds de recherche du Québec - Société et culture (FQRSC)
Grant programs:
PV129894-(RG) Programme Regroupements stratégiques - Subvention de déphasage
Maximizing the Number of Matches in Market Design: Public Housing, Refugees and School Choice Projet de recherche au Canada / 2017 - 2023
Lead researcher :
Lars Ehlers
Funding sources:
CRSH/Conseil de recherches en sciences humaines du Canada
Grant programs:
PVXXXXXX-Subvention Savoir
Recherches sur les fondations des mécanismes d'allocation des ressources Projet de recherche au Canada / 2016 - 2021
Lead researcher :
Lars Ehlers
Funding sources:
FRQSC/Fonds de recherche du Québec - Société et culture (FQRSC)
Grant programs:
PVXXXXXX-(SE) Programme Soutien aux équipes de recherche - Stade de développement : Renouvellement
CENTRE INTERUNIVERSITAIRE DE RECHERCHE EN ECONOMIE QUANTITATIVE (CIREQ) Projet de recherche au Canada / 2014 - 2021
Co-researchers :
Gérard Gaudet
,
Walter Bossert
,
Rui Castro
,
Lars Ehlers
,
Sílvia Gonçalves
,
Michael Huberman
,
William J. McCausland
,
Michel Poitevin
,
Francisco Ruge-Murcia
,
Marine Carrasco
,
Marc Henry
,
Bariş Kaymak
,
Massimiliano Amarante
,
Andriana Bellou
,
Ilze Kalnina
,
Joshua Lewis
,
Immo Schott
,
Sean Horan
,
Deniz Dizdar
,
Yves Sprumont
,
Vikram Manjunath
,
Nicolas Klein
,
Raphaël Godefroy
,
Julien Bengui
,
Sebastian Stumpner
,
Vasia Panousi
,
Mathieu Marcoux
,
Christopher Raphael Rauh
,
Dovonon Prosper
,
Erin Strumpf
,
Robert D Cairns
,
Victoria Zinde-Walsh
,
John W Galbraith
,
Ngo Van Long
,
Russell Davidson
,
Licun Xue
,
Francisco Alvarez-Cuadrado
,
Markus Poschke
,
Daniel Barczyk
,
Simon Van Norden
,
Hassan Benchekroun
,
Nikolay Gospodinov
,
Jorgen Hansen
,
Eferosyni Diamantoudi
,
Ming Li
,
Dipjyoti Majumdar
,
Szilvia Papai
,
Paul Gomme
,
Tatyana Koreshkova
,
Damba Lkhagvasuren
,
Artem Chneerov
,
Xie Huan
,
David Fuller
,
Matthieu Chemin
,
Rohan Dutta
,
Fabian Lange
,
Jian Li
,
Jean-Marie Dufour
,
Pierre Lasserre
,
Charles Séguin
,
Theodore Papageorgiou
,
Patrick Richard
,
Taoufik Bouezmani
,
Martino Pelli
Funding sources:
FRQSC/Fonds de recherche du Québec - Société et culture (FQRSC)
Grant programs:
PV129894-(RG) Programme Regroupements stratégiques
FLEXIBLE SCHOOL CHOICE Projet de recherche au Canada / 2012 - 2018
Lead researcher :
Lars Ehlers
Funding sources:
CRSH/Conseil de recherches en sciences humaines du Canada
Grant programs:
PVXXXXXX-Subvention Savoir
RECHERCHE SUR LES FONDATIONS DES MÉCANISMES SOUS INCERTITUDE NON PROBABILISÉE ET EFFECTIVITÉ DES COALITIONS DANS LES SOCIÉTÉS DIVERSES Projet de recherche au Canada / 2012 - 2017
Lead researcher :
Lars Ehlers
Funding sources:
FRQSC/Fonds de recherche du Québec - Société et culture (FQRSC)
Grant programs:
PVXXXXXX-(SE) Programme Soutien aux équipes de recherche - Stade de développement : Renouvellement
CENTRE INTERUNIVERSITAIRE DE RECHERCHE EN ECONOMIE QUANTITATIVE (CIREQ) Projet de recherche au Canada / 2008 - 2015
Lead researcher :
Emanuela Cardia
Co-researchers :
Marcel Boyer
,
Gérard Gaudet
,
Jean Marie Dufour
,
Walter Bossert
,
Rui Castro
,
Lars Ehlers
,
Sílvia Gonçalves
,
Michael Huberman
,
William J. McCausland
,
Benoit Perron
,
Michel Poitevin
,
Francisco Ruge-Murcia
,
Marine Carrasco
,
Marc Henry
,
Bariş Kaymak
,
Alessandro Riboni
,
Massimiliano Amarante
,
Andriana Bellou
,
Ilze Kalnina
,
Onur Ozgur
,
Sidartha Gordon
,
Yves Sprumont
,
Vikram Manjunath
,
Nicolas Klein
,
Raphaël Godefroy
,
Julien Bengui
,
René Garcia
,
Lyndon Moore
,
Dovonon Prosper
,
Erin Strumpf
,
James Engel-Warnick
,
Robert D Cairns
,
Victoria Zinde-Walsh
,
John W Galbraith
,
Ngo Van Long
,
Russell Davidson
,
Licun Xue
,
Francisco Alvarez-Cuadrado
,
Markus Poschke
,
Daniel Barczyk
,
Simon Van Norden
,
Éric Jacquier
,
Hassan Benchekroun
,
Nikolay Gospodinov
,
Jorgen Hansen
,
Eferosyni Diamantoudi
,
Ming Li
,
Dipjyoti Majumdar
,
Szilvia Papai
,
Paul Gomme
,
Tatyana Koreshkova
,
Artem Prokhorov
,
Damba Lkhagvasuren
,
Artem Chneerov
,
Xie Huan
,
David Fuller
,
Matthieu Chemin
,
Maxim Sinitsyn
,
Dhanoos Sutthiphisal
,
Takashi Kunimoto
,
Jennifer Hunt
,
Rohan Dutta
,
Fabian Lange
,
Jian Li
,
Pierre Lasserre
Funding sources:
FRQSC/Fonds de recherche du Québec - Société et culture (FQRSC)
Grant programs:
PV129894-(RG) Programme Regroupements stratégiques
BREAKING TIES IN SCHOOL CHOICE : WALK ZONES VERSUS SPECIALIZED SCHOOLS Projet de recherche au Canada / 2009 - 2011
Lead researcher :
Lars Ehlers
Publications Expand all Collapse all
- " Top Trading with Fixed Tie-Breaking in Markets with Indivisible Goods ", Journal of Economic Theory 151, 2014, 64-87.
- " Budget-Balance, Fairness and Minimal Manipulability ", Theoretical Economics 9, 2014, 64-87 (avec T. Andersson et L.-G. Svensson).
- " Strategy-Proofness makes the Difference: Deferred-Acceptance with Responsive Priorities ", Mathematics of Operations Research 39, 2014, 949-966 (avec B. Klaus).
- " School Choice with Controlled Choice Constraints: Hard Bounds versus Soft Bounds ", Journal of Economic Theory 154, 2014, 648-683 (avec I.E. Hafalir, M.B. Yenmez et M.A. Yilidrim).
- " Matching Markets under (In)complete Information ", Journal of Economic Theory 157, 2015, 295-317 (avec J. Massó).
- " Object Allocation via Deferred-Acceptance: Strategy-Proofness and Comparative Statics ", Games and Economic Behavior 97, 2016, 128-146 (avec B. Klaus).
- " Regulation via the Polluter-Pays Principle ", Economic Journal 126, 2016, 884-906 (avec S. Ambec).
- " Transferring Ownership of Public Housing to Existing Tenants: A Market Design Approach ", Journal of Economic Theory 165, 2016, 643-671 (avec T. Andersson et L.-G. Svensson).
- “Strategy-Proofness and Essentially Single-Valued Cores Revisited,” Journal of Economic Theory 176 (2018): 393—407.
- “Strategy-Proof Tie-Breaking in Matching with Priorities,” avec A. Westkamp, Theoretical Economics 13 (2018): 1009—1042.
- “Continuity and Incentive Compatibility in Cardinal Mechanisms,” avec D. Majumdar, D. Mishra et A. Sen, Journal of Mathematical Economics 88 (2020): 31—41.
- “Assigning Refugees to Landlords in Sweden: Efficient Stable Maximum Matchings,” avec T. Andersson, Scandinavian Journal of Economics 122 (2020): 937—965.
- “(Il)legal Assignments in School Choice,” avec T. Morrill,Review of Economic Studies 87 (2020): 1837—1875.
- “Organizing Time Exchanges: Lessons from Matching Markets,” avec T. Andersson, Á. Cseh and A. Erlanson, American Economic Journal: Microeconomics 13 (2021): 338—373.
- “Minimally Unstable Pareto Improvement over the Deferred Acceptance Mechanism,” avec B. Doğan, Theoretical Economics 16 (2021): 1249—1279.
- “An Algorithm for Identifying Agent-k-linked Allocations in Economies with Indivisibilities,” avec T. Andersson, International Journal of Economic Theory 18 (2022): 50—60 (Special Issue in honor of W. Thomson).
- “Robust Minimal Instability of the Top-Trading Cycles Mechanism,” avec B. Doğan, American Economic Journal: Microeconomics 14 (2022): 556—582.
- “Gale’s Fixed Tax for Exchanging Houses,” avec T. Andersson, L.-G. Svensson, et R. Tierney, Mathematics of Operations Research 47 (2022): 3110—3128.
- “Normative Properties for Object Allocation Problems: Characterizations and Trade-offs,” with B. Klaus, Chapter 10 in “Online and Matching-Based Market Design” (eds. F. Echenique, N. Immorlica et V.V. Vazirani), Cambridge University Press, forthcoming.
- “Three Public Goods and Lexicographic Preferences: Preferences: Replacement Principle,” Review of Economic Design 26 (2022): 367—384 (Special Issue in honor of S. Koray).
- “Strategy-Proof and Envyfree Random Assignment,” avec C. Basteck, Journal of Economic Theory 209 (2023): 105618.
- “Student-Optimal Interdistrict School Choice: District-Based versus School-Based Admissions,” Games and Economic Behavior 142 (2023): 411—422.
- “Externalities and the (Pre)Nucleolus in Cooperative Games,” avec M. Álvarez-Mozos, Mathematical Social Sciences 128 (2024): 10—15.
- “On the (Constrained) Efficiency of Strategy-Proof Random Assignment,” avec C. Basteck, Econometrica 93 (2025): 569—595.
- “Strategy-Proof Preference Aggregation and the Anonymity-Neutrality Tradeoff,” avec S. Athanasoglou et S. Bonkoungou, Games and Economic Behavior, à paraître.
- “Robust Design in Monotonic Matching Markets: A Case for Firm-Proposing Deferred-Acceptance,” avec J. Massó, May 2018. Lien: https://cireqmontreal.com/wp-content/uploads/cahiers/04-2018-cah.pdf
- “Dynamic Refugee Matching,” avec T. Andersson et A. Martinello, October 2018. https://cireqmontreal.com/wp-content/uploads/cahiers/22-2018-cah.pdf
- “Non-Manipulable House Exchange under (Minimum) Equilibrium Prices,” avec T. Andersson et L.-G. Svensson, December 2020. https://cireqmontreal.com/wp-content/uploads/cahiers/01-2021-cah.pdf
- “ Respecting Improvement in Markets with Indivisible Goods” Septembre 2023 https://papyrus.bib.umontreal.ca/xmlui/bitstream/handle/1866/28758/RI2023.pdf?sequence=1&isAllowed=y
- “Existence of Myopic-Farsighted Stable Sets in Matching Markets”, février 2025, avec B. Doğan, https://papers.ssrn.com/sol3/papers.cfm?abstract_id=4354768
- " School Choice with Control " (http//cireqmontreal.com/wp-content/uploads/cahiers/13-2010-cah.pdf) ", 2010
- " Externalities and the Nucleolus ", 2017 (avec M. Álvarez-Munos).
- “Robust Design in Monotonic Matching Markets: A Case for Firm-Proposing Deferred-Acceptance,” avec J. Massó, May 2018. Lien: https://cireqmontreal.com/wp-content/uploads/cahiers/04-2018-cah.pdf
- “Dynamic Refugee Matching,” avec T. Andersson et A. Martinello, October 2018. https://cireqmontreal.com/wp-content/uploads/cahiers/22-2018-cah.pdf
- “Non-Manipulable House Exchange under (Minimum) Equilibrium Prices,” avec T. Andersson et L.-G. Svensson, December 2020.Lien: https://cireqmontreal.com/wp-content/uploads/cahiers/01-2021-cah.pdf
- “Strategy-Proof and Envyfree Random Assignment,” avec C. Basteck, December 2020. Lien: https://cireqmontreal.com/wp-content/uploads/cahiers/02-2021-cah.pdf
- “Student-Optimal Interdistrict School Choice: District-Based versus School-Based Admissions,” November 2022). https://papyrus.bib.umontreal.ca/xmlui/handle/1866/27761
- "On the constrained efficiency of strategy-proof random assignment" avec C. Basteck, April 2023 https://papyrus.bib.umontreal.ca/xmlui/handle/1866/27983
-
“ Respecting Improvement in Markets with Indivisible Goods” Septembre 2023 https://papyrus.bib.umontreal.ca/xmlui/bitstream/handle/1866/28758/RI2023.pdf?sequence=1&isAllowed=y
“ Respecting Improvement in Markets with Indivisible Goods” Septembre 2023 https://papyrus.bib.umontreal.ca/xmlui/bitstream/handle/1866/28758/RI2023.pdf?sequence=1&isAllowed=y
Browse this profile on: