Search found 3 matches

by wakeland pdx.edu
Mon Apr 10, 2006 1:47 pm
Forum: SD Mailing List Archive
Topic: SD and other modelling approaches
Replies: 11
Views: 10652

SD and other modelling approaches

Posted by wakeland@pdx.edu To elaborate slightly on Keith's posting regarding Optimization and Monte Carlo (SD5894), one key benefit of Monte Carlo is to assess risk. What I describe below is by no means new information (it was call probabilistic SD or PSD many years ago), but perhaps it is worth re...
by wakeland pdx.edu
Sat Jan 07, 2006 2:32 pm
Forum: SD Mailing List Archive
Topic: The "usefulness" of SD
Replies: 18
Views: 31152

The ""usefulness"" of SD

Posted by wakeland@pdx.edu Are insights useful? Of course they are. Is there an accepted way to quantify how much an insight is worth? Not to my knowledge. Two of the best (among many) demonstrations of how building SD models can lead to useful insights are G. Richardson's ""Insightful Lit...
by wakeland pdx.edu
Sat Nov 19, 2005 12:52 pm
Forum: SD Mailing List Archive
Topic: Characterizing System Dynamics
Replies: 33
Views: 31376

Characterizing System Dynamics

Posted by wakeland@pdx.edu I do not agree with posting SD5621 about adding emergence (as in ""boids"") to the list of SD characteristics. I believe that the behavior in SD is almost the antithesis of emergence, since the behavior is calculated directly by solving the equations. E...