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April 04, 2005
Bennett et al.(1981)
PG Bennett, CS Huxham, and MR Dando. "Shipping in Crisis: a Trial Run
for 'Live' Application of the Hypergame Approach". Omega: The
International Journal of Management Science, Vol.9, No.6, pp.579-594,
1981.
hypergameの偉いひとの論文．
Bennett(1980)がformalなはなしを中心にしているのに対し，本論文では実際の問題への応用を中心にしている．
というわけで，特定の問題について記述することと，hypergame分析の一般的な実装について考えていくと．
This paper has two aims: firstly, to describe this
particular study, and secondly, to discuss the implications for
hypergame analysis in general. There is not space to consider either of
these in much detail: the latter set of issues are discussed more fully
in [7].
Bennett et al.(1981) pp.580
船舶危機はとても複雑な問題状況であるから，2つのフェーズに分けて考えていく．
phase 1では，いわゆるhypergameのアプローチで，haypergameの言葉で，formalなレベルではなくて，構造化された問題状況の絵を描くことを目的とする．
phase 2では，必要に応じてプレイヤ間の相互作用についてフォーマルなモデル化を行うと．
The shipping crisis was clearly a very complex problem.
Whilst it might have been theoretically possible to model it formally
as a whole using hypergames, in practice this would have been unwieldy
and was anyway beyond our resources. The study therefore proceeded
instead in two phases. In phase 1, the hypergame approach was used in a
general way. This involved the identification of a number of
interactions that appeared key components of the whole system, the main
parties in each and their possible broad options and aims. Rather than
a formal model as such, our aim here was to arrive at a broad, but
structured, picture of the problem, seen in hypergame terms. Then, in
phase 2, some of these interactions were modelled formally in more
specific terms, though their links with others were still borne in
mind.
Bennett et al.(1981) pp.581
特にhypergameアプローチの強みはゲームという概念の元に，問題状況にたいしての”見方”を提供することにあると述べている．これゆえに，問題状況のシステム的な理解が可能になると．
It seems true in general that problem-structuring will be
theory-directed. Because of the view of the world it suggests --- as a
series of 'games' in which the players may have differing beliefs as to
what the 'games' are --- the hypergame approach tends to lead to a
particular way of looking at the problem.
Bennett et al.(1981) pp.591
では，実際に問題状況下の1プレイヤがクライアントだとした時に，そのクライアントにhypergame approachがどう役に立つのか，それが次の課題であると．
The next stage in the application of the hypergame
approach is cleary to work with a 'client' interested only in what the
analysis can do for him, not in helping us to test out our ideas as
such.
Bennett et al.(1981) pp.592
結局hypergame分析の強みというのは，
- 問題の事後的な説明が可能になる
- 問題状況をシステム的に理解できるようになる
これは現状のゲーム理論の機能とほぼ同等で，概念レベルで拡張されているのにこのパワフルさを持っているのは，確かに魅力的なアプローチであるな．
Posted by ysk5 at April 4, 2005 10:44 AM
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