System Dynamics Glossary
What is the meaning of Causal loop diagram?
A causal loop diagram is a convenient way
of representing the principal feedback loops and related causal relationships
relevant to a particular problem situation, without distinguishing between the
nature of the interconnected variables. In the first instance causal
loop diagrams serve as preliminary sketches of causal hypotheses. Later,
they enable the essential components and interrelationships to be summarised.
Arrows are used in a causal loop diagram
to indicate direction of causal influences. Signs (+ or -)
adjacent the arrows indicate polarity, that is, how a change
in the variable at the tail of the arrow will
produce a change at the head of the arrow. Fundamentals
of causal loop diagrams are described by Goodman (1989). For
a detailed explanation of causal loop diagrams, see Sterman (2000:
137-190). For an exposé of the problems in the use
of causal loop diagrams, see Richardson, 1986.
Other topics in our resources on System Dynamics related to Causal loop diagram include:
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