Integrated World Model
IWM was developed by Fred Kile and Arnold Rabehl at the Aid Association for Lutherans, which is an insurance company in Appleton, Wisconsin. IWM is a descendent of RW-III, and it was also referred to as RW-IV. The designers' goal with IWM was to expand upon the work they did with RW-III. In particular, they wished to make the model more sophisticated and "realistic" while at the same time giving it a user interface such that a user could easily change the model and see the consequences of making different value-based decisions.
IWM was developed using FORTRAN on an IBM 360/158 computer. I ported the code so that the model runs on Macintosh and DOS/Windows computers. One can obtain the executable model, related auxiliary programs, source code, datasets, and as much documentation as exists for the model by clicking on the highlighted type of computer.
More about IWM and other global models can be found in an article by me with the citation:
Peter Brecke, "Integrated Global Models that Run on Personal Computers," Simulation, Vol. 60, No. 2 (February 1993), pp. 140-144.
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Peter Brecke … Sam Nunn School of International Affairs … Georgia Institute of Technology … Atlanta, Georgia 30332-0610 USA … Tel 404 894-6599 … Fax 404 894-1900 … Email peter.brecke@inta.gatech.edu