[EM] Fwd: Is Condorcet The Turkey?

[Kevin Venzke]

 --- Dave Ketchum <davek at clarityconnect.com> a écrit : 
> > (3)  Strategy concerns, not necessarily catastrophic but enough to
> > complicate voting.  For example, under Condorcet voters have the ability
> > to dump a low-utility Condorcet winner using a prisoner's dilemma-based
> > strategy.  Some of us are quick to discount the possibility of voters
> > using this type of strategy, but this phenomenon is actually quite
> > common.  Civil society is built on individuals sacrificing to varying
> > degrees for the common good.  We willingly forgo certain things without
> > expecting immediate compensation, because we expect to be compensated in
> > the "big picture".  Otherwise we'd all be out looting museums.  Or
> > common courtesy-- take the simple act of holding a door open for a
> > stranger carrying an armload of packages-- it's not like you expect a
> > tip.  Rather, you expect to reap the benefits of living in a society
> > where people hold doors open for strangers with packages.
> 
> Please explain "prisoner's dilemma".  I do not remember any suggestion of 
> such.

http://groups.yahoo.com/group/election-methods-list/message/11387

"Some of us are quick to discount..." probably refers in part to me.

If people do altruistically truncate, it means that Condorcet is probably
less likely to elect a low-utility candidate than if otherwise.  But I think
Bart's point is that voters shouldn't have to think about this.

Kevin Venzke
stepjak at yahoo.fr


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