As long as A and B are equally successful everything will remain stable. Though if either A or B receive more resources than the other, or A or B is more successful than the other, the imbalance will result in greater success of A or B accordingly and promote even more success of the one that demonstrates greater success.
Insight Maker is completely web based making it easy to develop and share models, allows concurrent multi-user editing, and just happens to be FREE, which a pretty good feature/price ratio.
It's relatively well understood that you can't be all things to all people. Somewhere one has to make choices. An Attractiveness Principle Systems Archetype is essentially a Limits to Growth Systems Archetype with multiple limits, all of which can not be addressed equally.
When endeavoring to develop an understanding of the nature of something it is generally useful to create a model of some type to aid in surfacing that understanding.
An element of Perspectives: The Foundation of Understanding and Insights. Register at http://www.systemswiki.org/
New Learning tend to reduce Outdated Thinking, Communicating & Learning though our Outdated Thinking, Communicating & Learning inhibits new learning. The question is then how do we break this cycle. Adopted from "An Introduction to Systems Thinking with STELLA" by Barry Richmond.
A Growth and Underinvestment with a Drifting Standard structure is simply an elaborated Growth and Underinvestment structure where the growth inhibitor induces a decline of the standard over time. The real nasty thing about this structure is that the growth inhibitor influence sets up a Reinforcing Loop which even further promotes a drifting of the standard over time.
A Limits to Growth Systems Archetype consists of a Reinforcing Loop, the growth of which, after some success, is offset by the action of a Balancing Loop.
Analysis has served us well in developing the understanding of things, at least to a point. Though analysis will not allow us to answer the why questions about things. For that we need synthesis. One might consider analysis and synthesis two sides of a coin that one shouldn't attempt to separate.
A Limits to Growth Systems Archetype consists of a Reinforcing Loop, the growth of which, after some success, is offset by the action of a Balancing Loop.