University Registration Center for Study Participants (UZH and ETH)
Blümlisalpstrasse 10
8006 Zürich

Phone: +41 44 634 59 18


z-Root is an expanded and modified version of the software hroot and is only allowed for use in the economics research laboratories at the University of Zürich and ETH.


When you report results of experiments administered with hroot, the licence requires that you mention its use in the publication and cite the relevant Working Paper in the following manner:

The experiment was organized and recruited with the software hroot (Bock, Nicklisch, Baetge 2012).

Olaf Bock; Andreas Nicklisch; Ingmar Baetge (2012): hroot: Hamburg registration and organization online tool. H-Lab Working Paper No. 1, 2012.

Technical Support

In case of technical problems with the software, suggestions, corrections or hints on content:

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