[MUD-Dev] [decentralization] Re: Reputation device (fwd)

[J C Lawrence]

------- Forwarded Message
To: decentralization at yahoogroups.com
From: "jito23" <jito at eccosys.com>
Date: Sun, 08 Sep 2002 21:45:51 -0000
Subject: [decentralization] Re: Reputation device

There is a great deal of research being done by a Toshio Yamagishi at
Hokkaido University. His web page is here

  http://lynx.let.hokudai.ac.jp/members/yamagishi/english.htm

His most recent paper, which is relevant to your discussion is not yet
on his site, but I can get it for anyone who is interested. He is a
social psychologist and does a study of reputation systems. He uses an
online open market where people create sell and buy things. They can lie
about the quality of what they sell or can tell the truth. He test four
reputation models. Completely identified where you can't change your
nym. Completely anonymous. Positive reputation tracking only where you
can change your nym and negative reputation tracking with changing nyms.

He finds that complete identity is the highest quality of exchange, but
this is obviously only possible in a closed community and not something
I believe is feasible or desireable on the Net. Completely anonymous is
obviously bad. The two interesting results were that negative tracking
started out with better quality and quickly degenerated while tracking
positive reputation started out rather low, but grew until it was almost
a high as a closed system with full identity.

Quality here is defined as the likelyhood of buying something of lower
quality and marked, or of someone lying. What he shows is that onces
people develop positive reputations, they continue to try to keep them
while negative reputation tracking encourages reseting your
nym. Negative reputation SOUNDS good so people try not to get it at the
beginning, but what really affects our behavior long term is positive
feedback.

His research is very thorough using a variety of time-lines and
techniques in a laboratory with real people an a mocked up B2B exchange.
------- End of Forwarded Message

------- Forwarded Message
To: decentralization at yahoogroups.com
From: Lucas Gonze <lgonze at panix.com>
Date: Mon, 9 Sep 2002 09:21:09 -0400 (EDT)
Subject: Re: [decentralization] Re: Reputation device

Joi has posted a link to the Toshio Yamagishi paper on his blog, at

  http://joi.ito.com/archives/2002/06/22/met_toshio_yamagishi.html

- - Lucas
------- End of Forwarded Message

--
J C Lawrence                
---------(*)                Satan, oscillate my metallic sonatas. 
claw at kanga.nu               He lived as a devil, eh?		  
http://www.kanga.nu/~claw/  Evil is a name of a foeman, as I live.


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