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B/C>K

Posted by David Breecker on Aug 02, 2007; 7:41pm
URL: http://friam.383.s1.nabble.com/B-C-K-tp524333p524336.html

Superb; thanks sb,
db

On Aug 2, 2007, at 2:14 AM, sbarr at clarku.edu wrote:

> On the contrary:  Axelrod (1984) or Axelrod and Hamilton(1981) is
> referenced in most, if not all, of Nowak's work on the evolution of
> cooperation in the Iterated Prisoners' Dilemma(IPD) and can be  
> viewed as
> an extension of Axelrod's work.  Nowak has pointed out that mistake-
> free
> play is an artifact of Axelrod's tournament.  Nowak claims that when
> mistakes such as a "trembling hand," which is an incorrect  
> implementation
> of one's own strategy, or a "fuzzy mind," which is a  
> misinterpretation of
> one's partner's strategy, are introduced Tit-For-Tat does no better  
> than a
> mixed strategy that cooperates or defects at the flip of a coin.
> Therefore, Nowak has reduced TFT to "the pivot rather than the aim  
> of an
> evolution towards cooperation" (Nowak and Sigmund, 1992).  Nowak  
> instead
> maintains that natural selection favors a strategy called win-stay,
> lose-shift or Pavlov.  Pavlov cooperates only if the response of both
> players was the same in the previous round.  Pavlov's response in the
> first round is considered to be negligible because it is tested in an
> infinitely repeated Prisoners' Dilemma.
>
> In addition, the following link is to one of Nowak's lectures on the
> evolution of cooperation:
> http://athome.harvard.edu/programs/evd/index.html.
> And, Nowak's most recent book Evolutionary Dynamics
> (http://www.ped.fas.harvard.edu/people/faculty/Books.html) gives a  
> fairly
> detailed overview of his areas of research: cooperation,  
> evolutionary game
> theory, evolutionary graph theory, and their applications to virus,  
> cancer
> and disease.  I would be happy to lend it to anyone at FriAM.
>
> sb
>
>> Here's what I don't quite get (and would be interested in knowing
>> more about from those who understand priority): I read and was deeply
>> influenced by "The Evolution of Cooperation" by Robert Axelrod,
>> shortly after its 1984 publication. Axelrod ran a round-robin
>> Prisoners Dilemma tournament, which yielded strategies he called "tit
>> for tat" and "tit for two tats" as victors (depending on the
>> conditions), and explored such matters (if memory serves) as
>> recognition/reciprocity and recurrent contacts.
>>
>> Why is there no mention of this in the Nowak stuff, which sounds
>> oddly familiar to my non-technical ear?
>> db
>>
>> On Jul 31, 2007, at 10:30 PM, Roger Critchlow wrote:
>>
>>> Looking at his selected list of publications (http://
>>> www.ped.fas.harvard.edu/people/faculty/select_list.html) I'm very
>>> interested in his work.
>>>
>>> There are enough pdf's of papers linked to the publication list to
>>> delay any further reaction by a few months.
>>>
>>> Nick started us discussing this thread:
>>>
>>> Hauert C, A Traulsen, H Brandt, MA Nowak, K Sigmund (2007). Via
>>> freedom to coercion: the emergence of costly punishment. Science
>>> 316: 1905-1907
>>>
>>> just last week in the context of road rage.
>>>
>>> -- rec --
>>>
>>> On 7/31/07, David Breecker <david at breeckerassociates.com> wrote:
>>> Though this might interest some on the list; I'd be interested to
>>> hear any reactions to Nowak's work:
>>>
>>> SCIENTIST AT WORK | MARTIN NOWAK
>>> In Games, an Insight Into the Rules of Evolution
>>> By CARL ZIMMER
>>> Martin Nowak's projects may seem randomly scattered across the
>>> sciences but they share an underlying theme: cooperation.
>>>
>>> dba | David Breecker Associates, Inc.
>>> Santa Fe: 505-690-2335
>>> Abiquiu:   505-685-4891
>>> www.BreeckerAssociates.com
>>>
>>>
>>>
>>>
>>> ============================================================
>>> FRIAM Applied Complexity Group listserv
>>> Meets Fridays 9a-11:30 at cafe at St. John's College
>>> lectures, archives, unsubscribe, maps at http://www.friam.org
>>>
>>> ============================================================
>>> FRIAM Applied Complexity Group listserv
>>> Meets Fridays 9a-11:30 at cafe at St. John's College
>>> lectures, archives, unsubscribe, maps at http://www.friam.org
>>
>> dba | David Breecker Associates, Inc.
>> Santa Fe: 505-690-2335
>> Abiquiu:   505-685-4891
>> www.BreeckerAssociates.com
>>
>>
>>
>> ============================================================
>> FRIAM Applied Complexity Group listserv
>> Meets Fridays 9a-11:30 at cafe at St. John's College
>> lectures, archives, unsubscribe, maps at http://www.friam.org
>
>
> ============================================================
> FRIAM Applied Complexity Group listserv
> Meets Fridays 9a-11:30 at cafe at St. John's College
> lectures, archives, unsubscribe, maps at http://www.friam.org
>

dba | David Breecker Associates, Inc.
Santa Fe: 505-690-2335
Abiquiu:   505-685-4891
www.BreeckerAssociates.com



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