Dr. Stefano Balietti

Contact2020/09: S. Balietti Foto

Phone: +49-6221-54 5091

Email: /

Office hour: Please make an appointment via email

Personal website:

nodeGame Website:


Short Summary

I am fellow at the Center for European Social Science Research at Mannheim University (MZES) and a postdoc at the Alfred-Weber Institute of Economics at Heidelberg University.

Previously, I worked at Microsoft Research Computational Social Science NYC, the Northeastern Network Science Institute, and the Harvard Institute for Quantitative Social Science.

I obtained my PhD in Computational Social Science at ETH Zurich.


Research Interests

  • consensus formation, social influence, and polarization;
  • incentives schemes for collective intelligence, in particular peer review systems;
  • governance in blockchain systems;
  • optimal experimental designs, Bayesian optimization with Gaussian processes;
  • inequality, perception thereof and its consequences;
  • noise, efficiency and equality in coordination and public-good games;
  • philosophy of science, in particular Paul Feyerabend's body of work.


Software Development

I am also an active open source developer. I am the creator of the nodeGame JavaScript platform for conducting real-time online group behavior:




S. Balietti, L. Getoor, D. Goldstein, and D. Watts "Reducing Opinion Polarization: Effects of Exposure to Similar People with Differing Political Views" Proceedings of the National Academy of Sciences (PNAS) Forthcoming

"Does Your Experiment Smell?" S. Balietti Communications of the ACM September 2021, Vol. 64 No. 9, Page 107 [Link]

"Incentives, Competition, and Inequality in Markets for Creative Production" S. Balietti and C. Riedl Research Policy 50(4) 104212 [Link]


Balietti, S., Klein, B. & Riedl, C. Optimal design of experiments to identify latent behavioral types. Experimental Economics Volume 24, pp. 772-79 [Link]

"The Human Quest for Discovering Mathematical Beauty in the Arts" S. Balietti Proceedings of the National Academy of Sciences 117 (44)27073-27075 (PNAS) [Link]


"Adding noise to the Institution: An Experimental Welfare Investigation of the Contribution-Based Grouping Mechanism" H.H. Nax, S. Balietti, R.O. Murphy, and D. Helbing Social Choice and Welfare Volume 50, Issue 2, pp. 213-245 [Link]


"How Do Individuals Share the Costs of Climate Change Mitigation? Evidence from an Online Game Experiment" B. Anderson, T. Bernauer, and S. Balietti Climatic Change Volume 142, Issue 3-4, pp. 447-461 [Link]

"nodeGame: Real-Time, Synchronous, Online Experiments in the Browser" Behavior Research Methods Volume 49, Issue 5, pp. 1696-1715 [Link 1] [Link 2]


"Peer Review and Competition in the Art Exhibition Game" S. Balietti, R.L. Goldstone, and D. Helbing, Proceedings of the National Academy of Sciences (PNAS) Volume 113, Number 30 (2016) 8414-8419 [Link]


"On Disciplinary Fragmentation and Scientific Progress" S. Balietti, M. Mäs, D. Helbing PLoS ONE 10(3): e0118747. [Link]


"Agent-Based Modeling" D. Helbing, S. Balietti book chapter in 'Social Self-Organization'. Series: Understanding Complex Systems. Helbing, Dirk (Ed.) Springer, (2012) 25-70 [Link] [Link]


"Understanding, Creating, and Managing Complex Techno-Socio-Economic Systems: Challenges and Perspectives" D. Helbing, S. Balietti, S. Bishop and P. Lukowicz The European Physical Journal - Special Topics. Volume 195, Number 1 (2011), 165-186 [Link]

"From Social Data Mining to Forecasting Socio-Economic Crises" D. Helbing and S. Balietti The European Physical Journal - Special Topics. Volume 195, Number 1 (2011), 3-68 [Link]

"From Social Simulation to Integrative System Design" D. Helbing and S. Balietti The European Physical Journal - Special Topics. Volume 195, Number 1 (2011), 69-100 [Link]

"How to Create an Innovation Accelerator" D. Helbing and S. Balietti The European Physical Journal - Special Topics. Volume 195, Number 1 (2011), 101-136 [Link]


"Fundamental and Real-World Challenges in Economics". D. Helbing and S. Balietti Science and Culture 76(9-10), 399-417 [Link]


Working Papers

Preferences over Income Distributions

Human Evaluation of Text-Based Games Using the TextWorld Platform

Tournaments for Collective Intelligence: a Survey of the Literature

Group Size and Efficiency in Leader/Followers Tournaments

Efficiency Gains in Coordination in Information Poor Environments [Link]

Paul Feyerabend's Peer Review



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Letzte Änderung: 01.12.2021
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