Head of the Department
Internef, office 608
Tel 021 692 61 34
After Charles Efferson received a Ph.D. in evolutionary ecology at the University of California, Davis, he had post-doctoral positions at the Santa Fe Institute in New Mexico and at the Institute for Empirical Research in Economics at the University of Zurich. Before coming to the University of Lausanne, Charles was also a Senior Research Associate in the Economics Department at the University of Zurich, followed by a period as Lecturer in the Psychology Department at Royal Holloway, University of London.
Charles' research focuses on the gene-culture coevolution of human social cognition and behavior in domains involving conformity, coordination, and cooperation. He routinely mixes evolutionary modeling with the analysis of both experimental and observational data. Charles has conducted fieldwork in Europe, Western Asia, Africa, and South America. Much of his current empirical research examines the mechanisms underlying socially harmful cultural traditions like female genital cutting and the preferential abortion of females. This research typically involves the evaluation of strategies for reversing such harmful traditions, and accordingly Charles has collaborated extensively with UNICEF, the World Bank, and various NGOs.
Among other journals, Charles has published in Evolution and Human Behavior, Nature Human Behaviour, Proceedings of the Royal Society B, Proceedings of the National Academy of Sciences, Science, and Nature. He is consulting editor for Evolution and Human Behavior and a member of the editorial board for Evolutionary Human Sciences.
Introduction to Bargaining and Negociations – Bachelor, 3rd year, 3 credits (since 2019)
Bargaining and Negociations – MScM, 1st year, 6 credits (since 2019)
Human Behavior and Evolutionary Inference – MScM & MScE, 2nd year, 6 credits (since 2019)
John Antonakis is Professor of Organizational Behavior in the Faculty of Business and Economics of the University of Lausanne, Switzerland. Professor Antonakis’ research is currently focused on charisma, predictors of leadership, leader development, as well as on research methods. He has published articles in many prestigious journals including Science, Nature Human Behavior, Psychological Science, Academy of Management Journal, Journal of Management, Journal of Applied Psychology, Journal of Operations Management, Entrepreneurship Theory and Practice, and Harvard Business Review, among many others; he has also published four books, and dozens of book chapters and conferences proceedings. He has received more than US$2.45 million in funding for his research.
Prof. Antonakis is Editor of The Leadership Quarterly. He was previously associate editor for The Leadership Quarterly and Organizational Research Methods; he has also served on the editorial boards of several top journals in management and applied psychology. In 2019 he was named a highly cited scientist by Clarivate-Web of Science group. In 2020 he was listed by PLOS Biology in the world’s top 2% of scientists for career-long impact.
His research is regularly quoted in the press and various media outlets including the New York Times, The Wall Street Journal, Financial Times, The Guardian, NEWSWEEK, TIME, BBC News, The Economist, Forbes, The New Yorker, Fast Company and many hundreds of other news sources, including TV and Radio.
UNIL-Webpage Google Scholar Citations ResearchGate CV Biography Twitter Videos of Charisma Experiments
Causal Analysis and Structura Equation Modeling – PhD in Management, 6 credits (since 2009)
Qualitative and Mixed-Methods Research – PhD in Management, 3 credits (since 2016)
Leadership – EMBA (since 2007)
Encadrement et comportement I – Licence management, 2nd year, 3 credits (2001-2005)
Encadrement et comportement II – Licence management, 3rd and 4th year, 3 credits (2001-2005)
Gestion des ressources humaines I – Licence management, 3rd and 4th year 3 credits (2002-2006)
Experiments with People: Design and Analysis – MScM 5.1: International / OB, 6 credits (2006)
Leadership et prise de decision – MAS en gestion des ressources humaines et des carriers (UNINE, UNIGE, UNIL), 2 credits (2007-2010)
Course currently taught by other colleague
Leadership Development – MScM & MScE, 1st year & MDE, Module 2, 3 credits (since 2005) – taught by Samuel Bendahan since 2009
Comportement organisationnel – Bachelor, 1st year, 3 credits (since 2005) – taught by Tyler Kleinbauer since 2022
Joerg Dietz earned his Ph.D. degree in Business Administration (Organizational Behavior) from Tulane University in 2000. He subsequently joined the Richard Ivey School of Business at the University of Southwestern Ontario, where he became an Associate Professor in 2005. In 2009, Joerg started at the Faculty of Business and Economics at the University of Lausanne as a Full Professor. He had a first term as department head from 2009 until 2012, before serving as a vice-dean for from 2012 until 2018. Prior to his academic career, Joerg enjoyed a ten-year career in investment banking.
His research interests include workforce diversity, leadership, organizational cultures and climates as well as cross-cultural management. He has published in journals such as the Academy of Management Journal, Journal of Applied Psychology, and Journal of Management, and he serves on numerous editorials boards including those of Leadership Quarterly and Organizational Research Methods,. His papers have won three different Academy-of-Management awards, and the National Science Foundations of Canada and Switzerland have repeatedly sponsored his work.
Joerg has taught courses on organizational behavior, organizational change, leadership, research methods, cross-cultural management, and evidence-based management in Austria, Canada, Germany, Hong Kong, Turkey, Switzerland, and the United States. He has co-authored a textbook on cross-cultural management and he published numerous case studies.
UNIL-Webpage Google Scholar Citations ResearchGate Personnal website
Comportement Organisationnel – Bachelor, 1st year, 3 credits (since 2012)
Evidence-Based Management – MScM, 1st year, 6 credits (since 2014)
Managing People : Organizational Design, Change, and Performance – MScM, 1st year, 6 credits (since 2020)
Leading Organizational Culture and Change – EMBA (since 2009)
Cross-cultural Management – MScM, 1st year, 6 credits (2009-2013)
Research Methods – MScM, 1st year, 6 credits (2009-2010)
Scientific Methods for Business – MScM, 1st year, 6 credits (2010-2013)
Theories of Organizational Behavior – MScM, 1st year and PhD in Management, 6 credits (2010 – 2018)
Change Management – Several Executive Education Progams
Ulrich Hoffrage is Full Professor of Organizational Behavior at HEC Lausanne, University of Lausanne, and the Director of the School’s Master of Science in Management program.
His research interests include judgment and decision making (in particular: ethical, managerial, consumer, medical and group decision making), and simple heuristics as models of bounded rationality. Moreover, he also contributed to the literature on cognitive illusions (e.g., overconfidence and hindsight bias), risk communication, and decision support systems. He is fascinated by the complex interplay between the co-evolution of individuals and their environments.
He published in journals such as Science, Psychological Review, Psychological Bulletin and his research (about 100 publications) is well received (>9200 citations in Scholar.Google; >3200 in Web of Sciences).
He studied psychology in Konstanz (Germany), and obtained his PhD in Salzburg (Austria). Before he joined HEC Lausanne in 2004, he was a senior researcher at the Max Planck Institute for Human Development (Berlin).
Judgement and Decision Making – Bachelor, 3rd year, 3 credits (since 2005)
Managerial Decision Making – MScM, 2nd year & MDE, Module 2, 6 credits (since 2005)
Séminaire : Jugement et prise de décision – Bachelor, 3rd year, 3 credits (since 2011)
Unethical Decision-Making Basics – MScM, MScF and PhD in Management, 2nd year & MDE, Module 2, 3 credits (since 2016)
Unethical Decision Making Advanced – MScM, MScF and PhD in Management, 2nd year & MDE, Module 2, 3 credits (since 2016)
Risk Theory Lecture & Seminar – MScM, 1st year, 3 credits (2005)
Psychology of Risk – MScM, 5.1 International/OB/Marketing options, 3 credits (2006-2007)
Rational Judgment and Choice – MScM, 5.1 Electives, 3 credits, (2009)
Unethical Decision Making – MScM, 2nd year & MDE, Module 2, 6 credits (2009-2016)
Managerial Decision Making and Negotiations – EMBA (2006-2013)
Julian Marewski (Full Professor) is a cognitive and decision scientist, interested in understanding what strategies people use to solve decision problems and which ones could help them to make better decisions. As decision processes cut across disciplinary boundaries, so do his research and teaching interests.
Currently, he is interested in simple, actionable rules for leadership and other ill-structured inter-personal tasks in applied real-world settings. He examines the usage of such rules in various modern-day professional (e.g., in business, medicine, aviation), historical (e.g., ancient Roman military settings), and societal (e.g., sects) contexts.
Research. In general, Marewski is interested in how and when particularly simple strategies, dubbed heuristics or simple rules of thumb, can aid making clever decisions in different domains. A central theme of his inter-disciplinary work is how the interplay between strategies and the environment shapes performance and behavior. Tackling this question often requires studying (i) the structure of environments and (ii) how decisional processes depend on components of cognition that are key for perceiving and/or representing the environment (e.g., memory). For instance, Marewski has modeled how people select between decision strategies as a function of how memory nestles into the structure of informational environments. In so doing, he has asked when people use strategies that exploit memory retrieval processes (e.g., retrieval fluency, recognition). To give another example, he has been interested in how social environments can lead people to perform seemingly unethical acts.
Further areas of interest can be inferred via his publications. They range from human intuition and rationality to medical decision making, specific rules of thumb (e.g., the recognition heuristic), statistical inference, (e.g., Chimpanzee) memory, or research evaluation, with a unifying question of his cross-disciplinary interests being how agents make decisions in their environments.
Marewski's research makes use of a variety of tools and data (e.g., experiments, field data, web frequency data, computer simulation methods). For instance, while historical sources and interviews with experienced professionals inform some of his current interests, he has conducted computer simulations and laboratory experiments to understand how people select among the decision strategies in their repertoire, working with detailed computational models of cognition (i.e., the ACT-R cognitive architecture).
Marewski's work has been published in Psychological Review, the Journal of Management, Scientometrics, Conservation Biology and other outlets. He has acted as ad hoc reviewer for several international funding agencies and scientific journals in different disciplines. His work has been funded, for instance, by the Swiss National Science Foundation. He is an Associate Editor for the journal Frontiers in Research Metrics and Analytics (Section Research Methods). He has been on the editorial board of the Journal of Applied Research in Memory and Cognition, and acted as guest editor for that journal as well as for Judgment and Decision Making and the Journal of Behavioral Decision Making.
Teaching. Marewski teaches at the Executive (EMBA, MBA, CAS, in-company), PhD, Master, and Bachelor-level. For example, he has taught statistics, data analytics and quantitative methods for management, as well as courses on leadership, organizational behavior, and soft-skills and his teaching portfolio also includes cognitive psychology. Furthermore, Marewski trains specialized audiences (e.g., managers, doctors) on topics such as decisional leadership, medical decision making, risk-communication (e.g., in health care), or data ethics and data risks (e.g., in business). In many of his courses, Marewski uses the case method of teaching.
Heuristic Decision-Making Strategies – MScM and PhD in Management, 2nd year, 6 credits (since 2018)
Organizational soft-skills: From presentation techniques to group management – Bachelor, 3rd year, 3 credits (since 2019)
Simple Rules for Leadership and Strategy: a Practical Approach – MScM, 1st year, 6 credits (since 2021)
Data Analytics – EMBA (since 2018)
Various in Executive Education over the past years (e.g., Decisional leadership / Leadership décisionnel; Data innovation, privacy and risks)
Applied Organizational Behavior and Management I – Bachelor, 3rd year, 3 credits (2011-2012; 2014-2018)
Management Science – MScM, 1st year, 6 credits (2011-2016, 2018)
Comportement Organisationnel et Management Appliqué I – Bachelor, 3rd year, 3 credits (2013)
Advanced Management Science – MScM, 2nd year, 6 credits (2016)
Big Data: Advanced Quantitative Tools to Manage People and Institutions – MScM, 1st year, 6 credits (2017)
Data-Driven Business - MScM, 1st year, 6 credits (2019-2020)
Statistics – EMBA (2012-2017)
Franciska Krings is Full Professor of Organizational Behavior at the Faculty of Business and Economics (HEC) at the University of Lausanne. She is currently elected member of the Foundation Council of the Swiss National Science Foundation and acts as president of its Compliance Committee. Between 2011 and 2016, Franciska completed a five-year mandate as vice-rector, responsible for junior faculty development and diversity, at the Direction of the University of Lausanne.
Her research interests include workforce diversity and discrimination, work-family balance, impression management, and (non)ethical behaviors. Much of her research focuses on the processes involved in discrimination based on age, gender, parenthood, and/or immigrant status on the labor market as well as on organizational measures and minority group behaviors to combat such types of discrimination. Another line of research investigates individual strategies and boundary conditions of impression management and faking in the selection context. Her work has been published in journals such as the Journal of Applied Psychology, British Journal of Management, Journal of Management Studies or the European Journal of Work and Organizational Psychology. She currently serves on the editorial boards of the International Journal of Selection and Assessment, Journal of Personnel Psychology and Social Psychology.
Steiner, R., Krings, F. & Wiese, B. (2019). Remember the Children, Honey! Spouses’ Gender-Role Attitudes and Working Mothers’ Work-to-Family Conflict Applied Psychology: International Review, 68, 250-275.
Gioaba I., & Krings F. (2017). Impression Management in the Job Interview: An Effective Way of Mitigating Discrimination against Older Applicants? Frontiers in Psychology, 8.
Kaufmann, M., Krings, F., Zebrowitz, L. & Sczesny, S. (2017). Age Bias in Selection Decisions: The Role of Facial Appearance and Fitness Impressions. Frontiers in Psychology, 1.
Bollmann, G. & Krings, F. (2016). Workgroup Climates and Employees’ Counterproductive Work Behaviors: A Social-Cognitive Perspective. Journal of Management Studies, 53, 184-209.
Roulin, N., Krings, F., & Binggeli, S. (2016). A dynamic model of applicant faking. Organizational Psychology Review, 6, 145-170.
Kaufmann, M., Krings, F., & Sczesny, S. (2015). Looking too old? How an older age appearance reduces chances of being hired. British Journal of Management, 27, 727-739.
Comportement Organisationnels I & II – EPFL SHS programme, Bachelor, 3rd year, 2 credits (since 2010)
Applying for a Professorship – PROWD (PROfessional Women with Doctorates) (since 2017)
HR Management – EMBA (2007-2010)
Diversity management – EMBA (2007-2010)
Course currently taught by other colleague
Gestion des ressources humaines : théorie et pratique – Bachelor, 3rd year, 3 credits (since 2002) – taught by Alissone Mendes de Oliveira (since 2022)
Group Processes – MScM, 1st year, 6 credits (since 2005) – taught by Caroline Pulfrey (since 2023)
Dean of HEC Faculty
Internef, office 251
Tel 021 692 33 41
Marianne Schmid Mast is full professor of Organizational Behavior at the University of Lausanne and Dean of the HEC Lausanne Business School. In her research, she aims at a better understanding of human interpersonal behavior, mostly at the workplace. Her research is situated at the crossroad of social psychology, management, and leadership and focuses on topics such as nonverbal behavior, first impressions, power and leadership, interpersonal communication, behavioral adaptability, responsible interpersonal behavior, interpersonal accuracy, and effects of physical environment on behavior. In her research, she uses a wide array of different research approaches, methods, and technologies: Experimental settings, simulations, role play, questionnaires, reaction time measures, implicit and explicit assessment methods, and behavioral observation and coding as well as technologies such as immersive virtual reality and automatic social sensing. Marianne Schmid Mast is a former member of the Swiss National Research Council and acted as president of the Swiss Psychological Society. She is a Society of Personality and Social Psychology (SPSP) fellow and an American Psychological Association (APA), Division 8 fellow, honored for her extraordinary, distinctive, and longstanding contributions to the science of personality and social psychology. In 2018, in 2019, and in 2020 she has been named one of the 50 most influential living psychologists.
Interpersonal Leadership – Executive Education (since 2016)
Course currently taught by other colleague
Communication et Leadership – Bachelor, 2nd year, 4.5 credits (since 2015) – taught by Matthieu Jost and Ottilie Tilston (since 2022)
Power and Leadership – MScM, 1st year, 6 credits (since 2015) – taught by Benjamin Tur (since 2021)
Vice-Dean of HEC Faculty
Internef, office 612
Tel 021 692 36 81
Christian Zehnder holds a PhD in Economics from the University of Zurich. He is Professor of Organizational Decision Making and Vice-Dean for Faculty. His research is interdisciplinary in that it combines insights from Economics, Psychology and Management and builds on various methodological approaches including laboratory experiments, field experiments and game theoretic models. Christian Zehnder is interested in understanding the behavioral drivers of decision making in organizations. His recent work focuses on two central topics in organizational research: conflict management and employee motivation. He has written a series of articles showing that the use of simple and seemingly overrigid contracts can help to diminish conflicts and counterproductive work behaviors. Most recently he became interested in studying the impact of charismatic leadership on employee performance in various organizational environments.
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Organizational Theory and Decision Making – MScM, 1st year & MScE, 2nd year, 6 credits (since 2008)
Theories of Organizations – PhD in Management, 6 credits (since 2010)
Fondements psychologiques d'économie – Bachelor, 3rd year, 6 credits (2011-2014)
Behavior, Economics, and Evolution Lecture Series – MScM, 1st year, 6 credits (2016)
Course currently taught by other colleague
Psychological Foundations of Economics – Bachelor, 3rd year, 6 credits (since 2008) – taught by Vincent Laferrière since 2021