Search found 5 matches

by Bruce Campbell
Sun Apr 16, 2000 11:24 am
Forum: SD Mailing List Archive
Topic: System Dynamics: Art, Science or Profession
Replies: 19
Views: 19937

System Dynamics: Art, Science or Profession

Jay Forrest wrote: > It seems to me that Bruce is disconnecting logic or structure from output. > I must propose that the accuracy of the output need have no relationship to > the accuracy of the underlying structure and that the insights gained from > a poorly designed but brilliantly calibrated (o...
by Bruce Campbell
Fri Apr 14, 2000 11:56 am
Forum: SD Mailing List Archive
Topic: SD: Simply another tool for public policy development?
Replies: 14
Views: 14286

SD: Simply another tool for public policy development?

Jay W. Forrester wrote: > > There has been discussion related to the difficulty of getting "decision > makers" to accept "decisions" that are based on system dynamics models. > > But system dynamics models are best and properly used for designing > policies, not decisions. Much o...
by Bruce Campbell
Fri Apr 14, 2000 11:16 am
Forum: SD Mailing List Archive
Topic: System Dynamics: Art, Science or Profession
Replies: 19
Views: 19937

System Dynamics: Art, Science or Profession

This is something I have also been wrestling with, although within the context of being reasonably confident that the models I build are valid. If you work through the Road Maps series published by MIT there are a number of models that deal specifically with rabbit populations - to take one of Kims ...
by Bruce Campbell
Fri Apr 14, 2000 9:28 am
Forum: SD Mailing List Archive
Topic: Historical Quotes
Replies: 2
Views: 3827

Historical Quotes

Jaideep Mukherjee wrote: <snip> > My peppermint teabox here has a quotation: "We do not weave the web of life, > We are merely a strand in it, Whatever we do to the web, We do to > ourselves." - Chief Seattle, 1854 <snip> This is now a bit off topic, but is another good example of why we s...
by Bruce Campbell
Tue Apr 11, 2000 10:42 am
Forum: SD Mailing List Archive
Topic: SD: Simply another tool for public policy development?
Replies: 14
Views: 14286

SD: Simply another tool for public policy development?

Erics query has raised some issues that I have been grappling, unsuccessfully, with for some time. A number of comments need to be made. Firstly, it is implicit in Erics post that if we come up with a better modelling method we should then be able to make better decisions. This assumes that decision...