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sbarr@clarku.edu

B/C>K

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

Owen Densmore

B/C>K

Administrator

Another book referencing Nowak's work that Nick and I stumbled over
while researching some of the MOTH work is: The Philosophical
Computer by Grim, Mar and St. Denis. An interesting book in general.
http://www.sunysb.edu/philosophy/faculty/pgrim/

-- Owen

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

David Breecker

B/C>K

In reply to this post by sbarr@clarku.edu

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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