In this lecture, we start drawing Causal Loop Diagrams (introduced in the previous lecture) in the System Dynamics Modeling tool Vensim (from Ventana Systems). This serves as a brief introduction to Vensim without getting into the stock-and-flow diagrams that we will learn to draw, simulate, and analyze later in the semester. This lecture also provides more practice in drawing CLD's, which help to diagram the causal structure in complex systems and identify the possibly many feedback loops that enrich the dynamics of such systems.
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