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History
- Received September 7, 2016
- Revision received October 31, 2016
- Accepted November 13, 2016
- First published December 2, 2016.
- Version of record published January 11, 2017.
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Copyright © 2017 the authors 0270-6474/17/370446-10$15.00/0
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Author contributions
Author contributions: S.U.M. and T.A.H. designed research; S.U.M. performed research; S.U.M. and T.A.H. analyzed data; S.U.M. and T.A.H. wrote the paper.
Disclosures
- Received September 7, 2016.
- Revision received October 31, 2016.
- Accepted November 13, 2016.
This work was supported by Swiss National Science Foundation Grant 140277 and EU FP7 Grant 607310. The authors thank Gioia Biriukoff, Elia In-Albon, and Sam Leone for help with the data collection and documentation.
The authors declare no competing financial interests.
- Correspondence should be addressed to Silvia U. Maier, University of Zurich, Department of Economics, Laboratory for Social and Neural Systems Research, Bluemlisalpstrasse 10, CH-8006 Zurich, Switzerland. silvia.maier{at}econ.uzh.ch
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