Search found 5 matches
- Sun Apr 08, 2001 2:32 pm
- Forum: SD Mailing List Archive
- Topic: Attractiveness Multiplier
- Replies: 12
- Views: 33052
Attractiveness Multiplier
Bill Braun and Jim Hines are talking about different things, I think. Jim refers to attractiveness indicators being used to model market shares. He offers one formulation, but a better one (Id claim) is based on formal utility theory, and predicts shares using either a logit or probit model. The log...
- Thu Apr 05, 2001 11:01 am
- Forum: SD Mailing List Archive
- Topic: Unwarranted Criticism
- Replies: 16
- Views: 21678
Unwarranted Criticism
I have been reading a report commissioned by a UK government department here that includes within it an unfavourable review of system dynamics as a modelling technique. It offers the following quote, taken from the New Fontana Dictionary of Modern Thought (1999): "Systems (sic) dynamics is ... ...
- Fri Apr 28, 2000 5:22 pm
- Forum: SD Mailing List Archive
- Topic: Rail Industry / Performance Measures
- Replies: 1
- Views: 2618
Rail Industry / Performance Measures
Kevin We recently completed some EU funded work looking at rail infrastructure provision using SD. It wasnt specifically about performance measurement, but may be of interest. I can forward details directly if you want them. John Swanson Associate Steer Davies Gleave 28-32 Upper Ground London SE1 9P...
- Tue Apr 11, 2000 11:18 am
- Forum: SD Mailing List Archive
- Topic: Employment and transport
- Replies: 1
- Views: 2470
Employment and transport
I have an interesting problem I am trying to use SD to help with, but have run into trouble formulating it satisfactorily. The study concerns a town in the UK, with a local economy that is primarily low-wage and low-skills and is in slow long-term decline. The town has relatively poor transport link...
- Sun Apr 09, 2000 12:40 pm
- Forum: SD Mailing List Archive
- Topic: Transportation and System Dynamics
- Replies: 5
- Views: 5897
Transportation and System Dynamics
Christian I am doing work in this area. The central idea Ive used is that transport provides access - to jobs, to a work force, etc - and that the attractiveness of a location for housing or business use is related to its accessibility. I borrowed ideas from the original Forrester Urban Dynamics mod...