Search found 6 matches

by Richard Karash
Thu Apr 04, 2002 2:49 pm
Forum: SD Mailing List Archive
Topic: Beer Game simulation
Replies: 9
Views: 30621

Beer Game simulation

Niall -- I dont have such a simulation, but I know there are a couple around. I actually experimented with this a bit using small groups several years ago. I didnt like the results... I did not think the computer simulation was as engaging as the actual board-play beer game. About timing for the bee...
by Richard Karash
Mon Apr 17, 2000 12:22 pm
Forum: SD Mailing List Archive
Topic: Theories for Developing Causal Loop Diagrams
Replies: 2
Views: 3368

Theories for Developing Causal Loop Diagrams

Hello Ignacio -- Im a practicing consultant and corporate trainer, not academic. Here are a couple of points that Ive found very useful in my teaching and practice: 1) consider each causal relationship assuming all else is constant. If all else constant how would a change in A affect B? Same directi...
by Richard Karash
Mon Apr 17, 2000 12:11 pm
Forum: SD Mailing List Archive
Topic: Epidemic and S-Shaped
Replies: 11
Views: 12189

Epidemic and S-Shaped

John Hayward asks about the causal loop diagram ("CLD") for the S-Shaped epidemic model, and questions the diagram in the Road Maps document D-4432. I note good answers from others here. I, too, had a problem with the Road Maps diagram. I think, a best, the Road Maps diagram doesnt emphasi...
by Richard Karash
Tue Mar 14, 2000 5:55 pm
Forum: SD Mailing List Archive
Topic: System Dynamics: Art, Science or Profession
Replies: 19
Views: 13011

System Dynamics: Art, Science or Profession

Hello Bruce -- Yes, thats why we get paid so much for doing this modeling. As I see it... - There is no "correct" model except sometimes in a classroom setting. - It may be possible to justify different models of a given situation, but validity depends on the context and the purpose. If th...
by Richard Karash
Tue Dec 07, 1999 10:31 pm
Forum: SD Mailing List Archive
Topic: Sharpening the concept and definition of variables.
Replies: 2
Views: 10985

Sharpening the concept and definition of variables.

I teach systems thinking regularly for business audiences. I tell them "a variable is something you can graph vs. time; draw the graphs related to your issue... Thats your starting set of variables." This eliminates many of the confusing possibilities in variables (verb instead of noun, un...
by Richard Karash
Thu Nov 18, 1999 10:55 am
Forum: SD Mailing List Archive
Topic: Espoused vs. Actual Decision Making was DT/furnace)
Replies: 0
Views: 9835

Espoused vs. Actual Decision Making was DT/furnace)

I think its a well proven fact that people often act at variance with their stated descriptions of how they act and make decisions. My work involves system dynamics and organizational learning. Heres a very short piece Ive learned from the org learning side that relates to this area: Chris Argyris t...