Ventana software support forum

To: Bill Cutler Motivation and fuzzy logic are not related to the same concepts. Fuzzy logic may relate to how a human acts upon or recognizes a condition. Motivation as a psychological entity is best portrayed, to my mind, in SD via the work of Ulrich Goluke and his associates -- several still at, ...

After having had a few requests, here are some references for the rigorous modeling of market shares. For SDers this means application to marginal (new) market share only, even through econometricians use this stuff for the average, straight away. Rationality, "irrationality," and informat...

To Jim Hines/George Richardson: The model is a rigorous SD: endogenous, deterministic, continuous time, with feedback on market shares (qualitative choice theory), supply/demand (stocks-and-flows) and economic growth (cointegration). (The cointegration part is structurally SD but uses a-theoretical ...

TO: Carter Williams: After three years of study, we are now implementing an R&D portfolio model for the National Research Council of Canada (NRC) to determine R&D priorities at the individual project level and to monitor the success of those project via leading indicators. These indicators f...