Related papers: Imitative Trust versus Indirect Reciprocity

The paper was withdrawn by the author. Further research is needed.

Withdrawn by authors

This paper has been withdrawn

This paper has been withdrawn while the author verifies the literature.

This paper has been withdrawn by the author due to some problems. Please contact me.

This paper has been withdrawn by the authors, due Eqn. 8 is not a corollary of ref. 3 and does not hold generally.

This paper has been withdrawn.

This paper has been withdrawn by the author due to the presented idea is wrong.

This paper has been withdrawn

This paper has been withdrawn by the author

This paper has been withdrawn by the authors.

This paper has been withdrawn by the authors. A substantially altered paper will be submitted incorporating major corrections, additions and improvements.

This paper has been withdrawn by the author due to the paper does not belong to Condensed Matter field.

This paper has been withdrawn by authors for significant modification.

This paper has been withdrawn. See published paper http://arxiv.org/math.HO/0512390

This paper has been withdrawn by the authors. Some of the arguments developed in the paper are erroneous. They will be rectified in a later publication.

This paper has been withdrawn: it does not evade the no-go results of Mayers, Lo and Chau, to whom I am most grateful for helpful correspondences.

This paper has been withdrawn by the author, because it is now part of an enlarged version entitled "Time functions as utilities" arXiv:0909.0890

This has been withdrawn by the authors.

This paper has been withdrawn by the authors. Because of a misunderstanding, the paper was submitted prematurely to the arXiv. A replacement will follow.