Cecilia's economics expertise helped her make a wise commodities purchase because she recognized that buying diamonds would satisfy her desires and needs.
What prompted Cecilia to purchase the diamonds?
When the cost of diamonds falls, so does the cost of creating a diamond necklace, and so does the price of a diamond necklace.
In addition, the supply of diamonds would grow as a result of the new diamond mine's opening. Making a diamond necklace would be expensive as a result of this.
Thus, diamonds would satisfy her desires and needs.
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