character: Mr. Brown
topic: Opportunity Cost in Economic Decisions
grade: 11
subject: Economics
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character: Ms. Smith
topic: Trade-offs in Economic Choices
grade: 11
subject: Economics
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character: Mr. Johnson
topic: Cost-Benefit Analysis
grade: 11
subject: Economics
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character: Mrs. Davis
topic: Scarcity and Resource Allocation
grade: 11
subject: Economics
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