Sarah notices a sign in the window of a clothing store advertising a major sale on coats. realizing that she needs a new coat, sarah enters the store, chooses a coat that she feels represents good value for the price, and buys it. this stage in the exchange process is known as the

Gerda, a real estate agent, is selling a moderately priced house in a subdivision. she knows from her uncle that the factory being built half a mile from the subdivision will be manufacturing dog food, using a process that creates a very strong odor that permeates the surrounding neighborhood. a buyer, who is unaware of the type of factory under construction, makes an offer on one of the houses gerda is selling, and within a short time, the deal goes through. what does this scenario best illustrate?