dan new_round
Principal Investigator

Daniel Balliet

My research focuses on understanding Human Cooperation. I apply experiments, field studies, and meta-analysis to test evolutionary and psychological theories of cooperation. My work addresses issues related to (a) how people think about their interdependence in social interactions, (b) how people condition their cooperation to acquire direct and indirect benefits, and (c) understanding cross-societal variation in cooperation. I founded the Amsterdam Cooperation Lab in 2015, and I am the recipient of an ERC Starting Grant.


Giuliana round

Giuliana Spadaro

I am interested in conducting experimental research on prosocial and cooperative behavior. In particular, I focus on understanding the relation between institutions, trust, and cooperation among strangers. I am currently involved in the creation of a multi-disciplinary open access database that aims to capture the entire history of research on human cooperation, and I aim to apply meta-analytic methods on this rich data to contribute to the understanding of cooperation across the globe.



Ilaria Tiddi

My research focuses on the design and implementation of intelligent systems that provide explanations for their decisions re-using knowledge sources from the Web. Under the supervision of Prof. Frank van Harmelen and Dr. Annette ten Teije (KR&R group, faculty of Computer Science) and Dr. Daniel Balliet (Cooperation Lab, faculty of Behavioural and Movement Sciences), I am currently working on building the CoDa research platform, which will allow researchers to perform meta-analyses in a more automatic and faster way.


stijn round
PhD Student       

Leonard (Stijn) Peperkoorn 

I consider my field of research, cooperation, a very important area of research as it has implications for policy makers and planners. As I learned more about social dilemma research from my colleagues, group size became my focus. Over the next four years as a PhD candidate, I will conduct new investigations on group size, work effectively with and learn from great minds within the social dilemma domain, and review the literature in meta-analytic studies.


simon new round

PhD Student


Simon Columbus

I am broadly interested in the ultimate and proximal causes of cooperation and conflict, which I study through from an interdisciplinary perspective. My work focuses on a) “the games people play” in their daily lives, b) the mechanisms by which people infer outcome interdependence from cues in their social environment, and c) how this subjectively experienced interdependence shapes cooperative behavior.


shuxian round
PhD Student

Shuxian Jin

My research interest focuses on social inequalities and sustainable cooperation to promote public goods. Recently, I’m going to start applying meta-analytic methods to understand how human cooperation can be influenced by inequality and uncertainty. I will also conduct empirical research to investigate who behaves more cooperatively under inequality (e.g., economic, power, status inequality).


Research Assistant

Eleanor Lieberman

I received my B.A. (cum laude) from Harvard University in 2019 with a major in Psychology and a minor in History of Science. I wrote my thesis under the supervision of Professor Joshua Greene comparing interventions involving intergroup contact and cooperation to reduce political animosity between American Republicans and Democrats. My research interest focuses on Moral Psychology, Political Psychology, and Cooperation,


junhui round
Junhui Wu: Post-Doc – Beijing Normal University
angelo round
Angelo Romano: Senior Research Fellow – Max Planck Institute for Research on Collective Goods
Fabiola new round
Fabiola Gerpott: Full Professor – WHU – Otto Beisheim School of Management

jan round
Jan Pletzer: Assistant Professor – Erasmus Universiteit Rotterdam
catherine round
Catherine Molho: Research Fellow – Institute for Advanced Study in Toulouse


van lange_round
Paul Van Lange: Full Professor
de dreu_round
Carsten De Dreu: Full Professor
Simon Gaechter: Full Professor
Toshio Yamagishi Full Professor
Francesca Righetti: Assistant Professor
Joshua Tybur: Associate Professor
Isa round
Isabel Thielmann: Post-Doc
Terence das Dores Cruz: PhD Student
Flore Bridoux: Associate Professor

Annika round
Annika Nieper: PhD Student
bela round
Bela Rinderu: Brand and Cross-media Scientist
olmo round
Olmo van den Akker: PhD Student
caroline round
Caroline Graf: PhD Student
mingliang round
Mingliang Yuan: PhD Student