About the Authors

Johan Almenberg

Affiliation Stockholm School of Economics, Stockholm, Sweden

Ken Kittlitz

Affiliation Consensus Point, Nashville, Tennessee, United States of America

Thomas Pfeiffer


Affiliation Program for Evolutionary Dynamics, Harvard University, Cambridge, Massachusetts, United States of America

Competing Interests

Consensus Point is employing KK and provided the online market interface used in the experiment. The market interface is commercial software; the trading data and all other software used for analyzing and presenting the data are available upon request. This does not alter the authors' adherence to all the PLoS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: JA KK TP. Performed the experiments: JA KK TP. Analyzed the data: JA KK TP. Wrote the paper: JA TP.