Breitmoser, Yves and Tan, Jonathan H.W. (2010): Generosity in bargaining: Fair or fear? Unpublished.
Breitmoser, Yves and Tan, Jonathan H.W. (2011): Ultimata bargaining: generosity without social motives. Unpublished.
Tan, Jonathan H.W.; Breitmoser, Yves and Bolle, Friedel (2010): Voluntary Contributions by Consent or Dissent. Unpublished.
