Serge Galam

Emeritus Researcher

Serge Galam is a physicist a specialist in disordered systems, a pioneer in sociophysics, and emeritus CNRS Senior Research Fellow.

After an international career in physics (Tel-Aviv University, City College of New York, New York University), he returned to France with a CNRS position at the Pierre and Marie Curie University. In 2003, strengthened by his conviction that certain social and political behaviours obey quantifiable and discoverable laws, he decided to devote himself entirely to his research in sociophysics joining the CREA - Centre de Recherche en Epistémologie Appliquée de l'École Polytechnique .

At the end of 2013, Galam crossed a disciplinary "boundary" and became a member of the CEVIPOF at Sciences Po. His challenge is to establish a hard science component in the social sciences, i.e. one that is refutable and capable of producing measurable predictions. He has thus taken on a human and scientific adventure combined with a methodological, epistemological and cultural challenge.

Research themes: Sociophysics, Disordered Systems, Minority Opinion Dynamics, Voting, Rumors, Terrorism, Coalitions forming, Decision Making, Controversies.

toutes les publications de serge galam

• Serge Galam. Will Trump win again in the 2020 election? An answer from a sociophysics model. Physica A: Statistical Mechanics and its Applications, 2021, 570, ⟨10.1016/j.physa.2021.125835⟩. ⟨hal-03566507⟩
• Serge Galam, Taksu Cheon. Tipping points in opinion dynamics: a universal formula in five dimensions. Frontiers in Physics, 2020, 8, pp.1-11. ⟨10.3389/fphy.2020.566580⟩. ⟨hal-02996532v2⟩
• Anna Tietze, Serge Galam, Philip Hofmann. Crediting multi-authored papers to single authors. Physica A: Statistical Mechanics and its Applications, 2020, 554, pp.1 - 7. ⟨10.1016/j.physa.2020.124652⟩. ⟨hal-03052087⟩
• Ahad Zehmakan, Serge Galam. Rumor spreading: A trigger for proliferation or fading away. Chaos: An Interdisciplinary Journal of Nonlinear Science, 2020, 30 (7), pp. - . ⟨10.1063/5.0006984⟩. ⟨hal-02997361⟩
• Serge Galam. Prédire des événements sociaux imprévisibles ?. Intellectica - La revue de l’Association pour la Recherche sur les sciences de la Cognition (ARCo), 2020, 72, pp.123 - 139. ⟨hal-03053612⟩
• Serge Galam, Taksu Cheon. Asymmetric Contrarians in Opinion Dynamics. Entropy, 2020, 22 (1), pp.1 - 19. ⟨10.3390/e22010025⟩. ⟨hal-03052089⟩
• Frans Jacobs, Serge Galam. Two opinions dynamics generated by inflexibles and non-contrarian and contrarian floaters. Advances in Complex Systems (ACS), 2019, 22 (4), pp.1 - 45. ⟨10.1142/S0219525919500085⟩. ⟨hal-03053613⟩
• Taksu Cheon, Serge Galam. Dynamical Galam model. Physics Letters A, 2018, 382 (23), pp.1509 - 1515. ⟨10.1016/j.physleta.2018.04.019⟩. ⟨hal-03064907⟩
• Serge Galam. Unavowed Abstention Can Overturn Poll Predictions. Frontiers in Physics, 2018, 6 (24), ⟨10.3389/fphy.2018.00024⟩. ⟨hal-02996488⟩
• Virginie Tournay, Gérald Bronner, Serge Galam. Modéliser et expliquer les radicalisations. Quaderni, 2018, 95, pp.65 - 78. ⟨10.4000/quaderni.1143⟩. ⟨hal-03064909⟩
• Serge Galam. Are referendums a mechanism to turn our prejudices into rational choices?. Laurence Morel; Matt Qvortrup. The Routledge Handbook to Referendums and Direct Democracy, Routledge, pp.334 - 347, 2018, 9781138209930. ⟨hal-02998451⟩
• Alexandre Delanoë, Serge Galam. Discovering networks of actors behind the dynamics of opinion. Nicolas Debarsy; Stéphane Cordier. Understanding Interactions in Complex Systems, Cambridge Scholars Publishing, pp.179 - 195, 2017, 9781443894968. ⟨hal-03611632⟩
• Serge Galam, Charles Jaigu. Comment j’ai prévu Trump. Le Figaro, 2017, pp.16 - 16. ⟨hal-03567616⟩
• Serge Galam. The Trump phenomenon: An explanation from sociophysics. International Journal of Modern Physics B, 2017, 31 (10), pp.1742015(1) - 1742015(2). ⟨10.1142/S0217979217420152⟩. ⟨hal-01523945⟩
• Serge Galam. Geometric vulnerability of democratic institutions against lobbying. Mathematical Models and Methods in Applied Sciences, 2017, 27 (1), pp.13 - 44. ⟨10.1142/S0218202517400012⟩. ⟨hal-03064910⟩
• Gil Mihaely, Serge Galam. L’homme qui a prévu l’élection de Trump et la défaite de Juppé. CAUSEUR.fr, 2016. ⟨hal-03571044⟩
• Serge Galam, Marco Alberto Javarone. Modeling Radicalization Phenomena in Heterogeneous Populations. PLoS ONE, 2016, 11 (5), pp.1 - 15. ⟨10.1371/journal.pone.0155407⟩. ⟨hal-03064921⟩
• Serge Galam. Stubbornness as an unfortunate key to win a public debate. Mind and Society, 2016, 15 (1), pp.117 - 130. ⟨10.1007/s11299-015-0175-y⟩. ⟨hal-03064925⟩
• Serge Galam. The invisible hand and the rational agent are behind bubbles and crashes. Chaos, Solitons & Fractals, 2016, 88, pp.209 - 217. ⟨10.1016/j.chaos.2016.03.011⟩. ⟨hal-03064922⟩
• Jørgen Vitting Andersen, Ioannis D. Vrontos, Petros Dellaportas, Serge Galam. A Socio-Finance Model: Inference and empirical application. 2015. ⟨halshs-01242248⟩
• André Timpanaro, Serge Galam. Testing the validity of the Kirkwood approximation using an extended Sznajd model. Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, 2015, 92 (6), pp.1 - 6. ⟨10.1103/PhysRevE.92.062826⟩. ⟨hal-03064926⟩
• Nataša Golo, Serge Galam. Conspiratorial Beliefs Observed through Entropy Principles. Entropy, 2015, 17, pp.5611 - 5634. ⟨10.3390/e17085611⟩. ⟨hal-03064943⟩
• Shen Qian, Yijun Liu, Serge Galam. Activeness as a key to counter democratic balance. Physica A: Statistical Mechanics and its Applications, 2015, 432, pp.187 - 196. ⟨10.1016/j.physa.2015.03.029⟩. ⟨hal-03064941⟩
• André Timpanaro, Serge Galam. Analytical expression for the exit probability of the q-voter model in one dimension. Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, 2015, 92 (1), pp.1 - 5. ⟨10.1103/PhysRevE.92.012807⟩. ⟨hal-03064940⟩
• Serge Galam. A Renormalization Group Like Model for a Democratic Dictatorship. Yurij Holovatch. Order, Disorder and Criticality, World Scientific Publishing, pp.193 - 213, 2015, 9789814632676. ⟨10.1142/9789814632683_0005⟩. ⟨hal-02998473⟩
• Alexandre Delanoë, Serge Galam. Combining Text-mining Analysis and Agent-based Modeling Methods. Bulletin de Méthodologie Sociologique / Bulletin of Sociological Methodology, 2015, 126 (1), pp.84 - 98. ⟨10.1177/0759106315572560⟩. ⟨hal-03608128⟩
• Serge Galam, André Martins. Two-dimensional Ising transition through a technique from two-state opinion-dynamics models. Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, 2015, 91 (1), pp. - . ⟨10.1103/PhysRevE.91.012108⟩. ⟨hal-03064931⟩
• Serge Galam, Rakefet Tavor. Are people like atoms?. Epoch Times, 2014, 268, pp.56 - 58. ⟨hal-03429921⟩
• Sarwat Nizamani, Nasrullah Memon, Serge Galam. From public outrage to the burst of public violence. Physica A: Statistical Mechanics and its Applications, 2014, 416, pp.620 - 630. ⟨10.1016/j.physa.2014.09.006⟩. ⟨hal-03064936⟩
• Galina Vinogradova, Serge Galam. Global alliances effect in coalition forming. The European Physical Journal B: Condensed Matter and Complex Systems, 2014, 87 (266), pp.1 - 12. ⟨10.1140/epjb/e2014-50264-4⟩. ⟨hal-03064934⟩
• Galina Vinogradova, Serge Galam. Dissolution of a Global Alliance. Policy and Complex Systems, 2014, 1 (1), pp.93 - 107. ⟨10.18278/jpcs.1.1.5⟩. ⟨hal-03064933⟩
• Alexandre Delanoë, Serge Galam. Modeling a controversy in the press. Physica A: Statistical Mechanics and its Applications, 2014, 402, pp.93 - 103. ⟨10.1016/j.physa.2014.01.054⟩. ⟨hal-03608126⟩
• Jørgen Vitting Andersen, Ioannis Vrontos, Petros Dellaportas, Serge Galam. Communication impacting financial markets. 2014. ⟨halshs-00982959⟩
• Alexandre Delanoë, Serge Galam. Mixing text mining analysis and agent based modelling methodologies.. 2014. ⟨hal-00955276⟩
• Serge Galam. Is It Necessary to Lie to Win a Controversial Public Debate?. Davron Matrasulov; Eugene Stanley. Nonlinear Phenomena in Complex Systems, Springer, pp.37 - 45, 2014, 9789401787048. ⟨hal-02998467⟩
• Serge Galam. Anticiper le phénomène extrémiste. Petr Muzny. Les démocraties face à l'extrémisme, Institut Universitaire Varenne, pp.123 - 136, 2014, 9782370320407. ⟨hal-02998460⟩
• Jørgen Vitting Andersen, Ioannis Vrontos, Petros Dellaportas, Serge Galam. Communication impacting financial markets. EPL - Europhysics Letters, 2014, 108, pp.28007. ⟨10.1209/0295-5075/108/28007⟩. ⟨hal-01215750⟩
• Jørgen Vitting Andersen, Ioannis Vrontos, Petros Dellaportas, Serge Galam. A Socio-Finance Model: Inference and empirical application. 2014. ⟨hal-01215605⟩
• Serge Galam, Bernard Walliser. Ising model versus normal form game. Physica A: Statistical Mechanics and its Applications, 2010, 389 (3), pp.481-489. ⟨10.1016/j.physa.2009.09.029⟩. ⟨halshs-00754481⟩
• J. Borghetti, Serge Galam. Chaotic, staggered, and polarized dynamics in opinion forming: The contrarian effect. Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, 2006, 73, pp.066118-. ⟨10.1103/PhysRevE.73.066118⟩. ⟨hal-00087460⟩
• Serge Galam, Jean-Daniel Zucker. From Individual Choice to Group Decision Making. Physica A: Statistical Mechanics and its Applications, 2000, 287 (3-4), pp.644-659. ⟨10.1016/S0378-4371(00)00399-X⟩. ⟨hal-01184461⟩
• Nicolas Vandewalle, Serge Galam. A 1-d Ising model for ripple formation. Journal of Physics A: Mathematical and Theoretical, 2000, 338, pp.4955-4962. ⟨hal-00019699⟩
• N. Vandewalle, Serge Galam, M. Kramer. A New Universality for Random Sequential Deposition of Needles. The European Physical Journal B: Condensed Matter and Complex Systems, 2000, 14, pp.407-410. ⟨hal-00018861⟩
• Serge Galam, Alain Mauger. Self-similar phase space in spin glasses. Journal de Physique I, 1994, 4 (3), pp.467-473. ⟨10.1051/jp1:1994111⟩. ⟨jpa-00246921⟩
• Serge Galam, Philippe Depondt. Orientational glasses. II. Calculation of critical thresholds in ACNxMn1-x mixtures. Journal de Physique I, 1992, 2 (10), pp.1899-1906. ⟨10.1051/jp1:1992253⟩. ⟨jpa-00246670⟩
• Serge Galam. Orientational glasses. I. A random compressible model for KCN-KBr. Journal de Physique I, 1991, 1 (8), pp.1195-1208. ⟨10.1051/jp1:1991200⟩. ⟨jpa-00246405⟩
• Serge Galam, M. Gabay. PHASE TRANSITIONS IN COUPLED SPIN SYSTEMS. Journal de Physique Colloques, 1988, 49 (C8), pp.C8-1547-C8-1548. ⟨10.1051/jphyscol:19888708⟩. ⟨jpa-00228945⟩
• H. Diep, Serge Galam, P. Azaria. CONTINUOUS VERSUS FIRST ORDER TRANSITION IN DILUTE ISING ANTIFERROMAGNETS IN A FIELD. Journal de Physique Colloques, 1988, 49 (C8), pp.C8-1261-C8-1262. ⟨10.1051/jphyscol:19888573⟩. ⟨jpa-00228787⟩
• Serge Galam. SINGLE AVERAGE MAGNETIZATION, STAGGERED SYMMETRY, AND NEXT NEAREST NEIGHBORS IN DILUTE SYSTEMS. Journal de Physique Colloques, 1988, 49 (C8), pp.C8-1259-C8-1260. ⟨10.1051/jphyscol:19888572⟩. ⟨jpa-00228786⟩