Working Paper 64


We explored experimentally how threshold uncertainty affects coordination success in a threshold public goods game.

Whereas all groups succeeded in providing the public good when the exact value of the threshold was known, uncertainty was generally detrimental for the public good provision.

The negative effect of threshold uncertainty was particularly severe when it took the form of ambiguity, ie when players were not only unaware of the value of the threshold but also of its probability distribution.

Early signalling of willingness to contribute and share the burden equitably helped groups in coping with threshold uncertainty.

Astrid Dannenberg, Andreas Löschel, Gabriele Paolacci, Christiane Reif and Alessandro Tavoni

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