E.R.M.A.S.S.

Équipe de Recherche en Mathématiques

Appliquées aux Sciences Sociales

 

Main Publications ordered by year.

 

  • Siani, J., Tchantcho, B., & Tsague, B. P. (2024). Axiomatization of some power indices in voting games with abstention. Social Choice and Welfare62(4), 761-783.
  • Siani, J., Tedjeugang, N., & Tchantcho, B. (2023). Influence relation in two-output multichoice voting games. Games and Economic Behavior142, 879-895.
  • Nganmeni, Z., Pongou, R., Tchantcho, B., & Tondji, J. B. (2022). Vaccine and inclusion. Journal of Public Economic Theory24(5), 1101-1123.
  • Adin Safokem, Issofa Moyouwou, Aurélien Mekuko, (2021) Axiomatizing the Public Good Index via merging and new arrival properties, Discrete Applied Mathematics 305: 86-102
  • Pongou, R., & Tchantcho, B. (2021). Round-robin political tournaments: Abstention, truthful equilibria, and effective power. Games and Economic Behavior130, 331-351.
  • Courtin, S., & Tchantcho, B. (2019). Public Good indices for games with several levels of approval. The BE Journal of Theoretical Economics20(1), 20190068.
  • Freixas, J., Tchantcho, B., & Tsague, B. P. (2019). A parameterization for a class of complete games with abstention. Discrete Applied Mathematics255, 21-39.
  • Courtin, S., Nganmeni, Z., & Tchantcho, B. (2017). Dichotomous multi-type games with a coalition structure. Mathematical Social Sciences86, 9-17.
  • Martin, M., Nganmeni, Z., & Tchantcho, B. (2017). The Owen and Shapley spatial power indices: a comparison and a generalization. Mathematical Social Sciences89, 10-19.
  • Pongou, R., Tchantcho, B., & Tedjeugang, N. (2017). Properties of ladder tournaments. European Journal of Operational Research263(1), 203-213.
  • Courtin, S., Nganmeni, Z., & Tchantcho, B. (2016). The Shapley–Shubik power index for dichotomous multi-type games. Theory and Decision81, 413-426.
  • Courtin, S., & Tchantcho, B. (2015). A note on the ordinal equivalence of power indices in games with coalition structure. Theory and Decision78, 617-628.
  • Courtin, S., Martin, M., & Tchantcho, B. (2015). Positional rules and q-Condorcet consistency. Review of Economic Design19, 229-245.
  • Andjiga N.G., Aurélien Mekuko, and Moyouwou I. (2014) Metric rationalization of social welfare functions. Mathematical Social Sciences 72: 14--23.
  • Freixas, J., Tchantcho, B., & Tedjeugang, N. (2014). Achievable hierarchies in voting games with abstention. European Journal of Operational Research236(1), 254-260.
  • Freixas, J., Tchantcho, B., & Tedjeugang, N. (2014). Voting games with abstention: Linking completeness and weightedness. Decision support systems57, 172-177.
  • Diffo Lambo, L., Tchantcho, B., & Moulen, J. (2012). Comparing influence theories in voting games under locally generated measures of dissatisfaction. International Journal of Game Theory41(3), 719-731.
  • Freixas, J., Marciniak, D., & Pons, M. (2012). On the ordinal equivalence of the Johnston, Banzhaf and Shapley power indices. European Journal of Operational Research216(2), 367-375.
  • Pongou, R., Tchantcho, B., & Diffo Lambo, L. (2011). Political influence in multi-choice institutions: cyclicity, anonymity, and transitivity. Theory and decision70, 157-178.
  • Tchantcho, B., Diffo Lambo, L., Pongou, R., & Moulen, J. (2010). On the equilibrium of voting games with abstention and several levels of approval. Social Choice and Welfare34(3), 379-396.
  • Lambo, L. D., Tchantcho, B., & Moulen, J. (2009). A core of voting games with improved foresight. Mathematical Social Sciences58(2), 214-225.
  • Tchantcho, B., & Diffo Lambo, L. (2009). A note on the manipulation of social choice correspondence. Mathématiques et sciences humaines (2000), (186), 65-75.
  • Pongou, R., Diffo Lambo, L., & Tchantcho, B. (2008). Cooperation, stability and social welfare under majority rule. Economic Theory35, 555-574.
  • Tchantcho, B., & Diffo Lambo, L. (2008). A characterization of social choice correspondences that implement the core of simple games. Economic Theory37, 533-542.
  • Tchantcho, B., Lambo, L. D., Pongou, R., & Engoulou, B. M. (2008). Voters' power in voting games with abstention: Influence relation and ordinal equivalence of power theories. Games and Economic Behavior64(1), 335-350.

Upcoming Event by ERMASS

The 2026 ERMASS Annual Conference will take place from August 3 to 5 at the École Normale Supérieure of Yaoundé, bringing together researchers, practitioners, and students around economic theory, game theory, mathematics, applied microeconomics, and related fields. The event will also host the inaugural ANDJIGA–DIFFO–MOULEN Prize,  recognizing excellence in research, mentoring, and the application of mathematics to Africa’s social and economic challenges. Please click the link above for more information.

La Conférence annuelle 2026 de l’ERMASS se tiendra du 3 au 5 août à l’École Normale Supérieure de Yaoundé et réunira des chercheurs, des praticiens et des étudiants autour de la théorie économique, de la théorie des jeux, des mathématiques, de la microéconomie appliquée et de disciplines connexes. Elle accueillera également la première édition du Prix ANDJIGA–DIFFO–MOULEN, qui récompense l’excellence en recherche, en encadrement et en application des mathématiques aux défis sociaux et économiques de l’Afrique. Cliquez sur le lien ci-dessus pour en savoir plus.

A Look Back at ERMASS Events

  • July 28 - 30, 2025 (Honoring Pr. Nicolas Gabriel Andjiga)
  • June 17 - 21, 2024
  • Du 04 au 08 septembre 2023 (Honoring Pr. Lawrence Diffo Lambo)
    • "Workshop" - Conférence 
    • Thème : Approches Mathématiques, Économique et Politique de la Théorie du vote
    • Lieu : École Normale Supérieure Yaoundé – Université de Yaoundé I
  • Du 05 au 09 septembre 2022
    • "Workshop" - Conférence.
    • Thème : Aide Multicritère à la Décision et Applications
    • Lieu : École Normale Supérieure Yaoundé – Université de Yaoundé I

 

MDAISS-2024.
Theme: Data and AI Tools to Boost Private Sector and Entrepreneurship.
MDAISS-2024.
Theme: Data and AI Tools to Boost Private Sector and Entrepreneurship.
"Workshop" - Conférence, 2023
Aide Multicritère à la Décision et Applications.
"Workshop" - Conférence, 2023
Aide Multicritère à la Décision et Applications.