| Phone | +49 (0)30 2093-5890 |
| Address | Humboldt University Berlin Institute of Economic Theory I Spandauer Str. 1 10099 Berlin |
| Homepage | http://www.wiwi.hu-berlin.de/professuren/vwl/wtm1/mitarbeiter/lang |
Contracting with Subjective Evaluations and Communication, issue 2012/14, Bonn, Max Planck Institute for Research on Collective Goods, 2012.
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The fog of fraud – mitigating fraud by strategic ambiguity, issue 2010/24, Bonn, Max Planck Institute for Research on Collective Goods, 2010.
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