b. barter economy
Simple trading, no money involved. (Also the definition of barter)
Answer:
AIDA model
Explanation:
According to my research on different organizational models, I can say that based on the information provided within the question the model being described is called the AIDA model. This model stands for Attention or Awareness, Interest, Desire and Action and describes the process between when a customer becomes aware of a product to when they purchase that product.
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The writings of Adam Smith set forth the theory of capitalism.
