Talk:Solution concept
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[edit] Definition
"A strictly dominated strategy is one for which there is a strategy that a player is always better off playing and so a rational player would never play such a strategy." (Under rationalizability & Iterated Dominance) Is there something wrong with this definition?
[edit] Backward induction and Subgame perfect?
Can someone tell me why there are two different sections for Subgame Perfect Equilibria and Backward Induction? I may be remembering wrongly, but I thought that Backward Induction was a process that identified all and only SPE in a game. Is this right? If so, why does it constitute a seperate Solution Concept? Thanks! --Kzollman 23:49, July 22, 2005 (UTC)
Subgame perfection is a generalisation of backward induction, but backward induction can only be applied in finite games of perfect information. Infinite games and games of imperfect information can have subgame perfect equilibria however. I think there is enough information in the backward induction article to merit two separate articles. Someone looking up backward induction doesn't want to trawl through the subgame perfection article trying to extract information relevant only to backward induction and both articles are too large to merge. As it is, I say keep them separate. Treborbassett 19:55, 28 July 2005 (UTC)
- Ohh, I wasn't suggesting merging the two articles. I was just suggesting merging the two sections in this article. This article will need to get much longer in order to be complete. This is why I'm concerned. There are many equilibrium concepts that are currently not in wikipedia, including Trembling hand perfect equilibrium, Correlated equilibrium, Risk dominant equilibrium, Self-confirming equilibrium... you get my point. In addition, the section on rationalizability will need to be expanded. I'm fine to keep the sections seperate, however. --Kzollman 03:06, July 29, 2005 (UTC)
Yes point taken. But I think they should remain separate, since merging those sections would either involve losing important information or not gaining in terms of space. I agree this article is far from complete. Treborbassett 06:53, 29 July 2005 (UTC)
[edit] Discussion at WPGT
Hello, if you're interested in this page, there is currently a discussion about it at Wikipedia talk:WikiProject Game theory. Please chime in if you know something! --best, kevin [kzollman][talk] 19:19, 1 December 2005 (UTC)
