What is Supply
In a city where glowing Embergems have vanished from every market, curious Lyra hikes to the Sunstone Mines to learn where they come from. She discovers that a sudden high price for Embergems—two hundred coins each—spurs the miners to abandon gray stones and dig frantically for the gems, filling carts until the market is flooded. When too many gems arrive, prices crash, and Lyra sees the cycle of supply in action. The story explains how price signals encourage producers to create more goods, turning an economics concept into a vivid adventure.
About the Book
In a city where glowing Embergems have vanished from every market, curious Lyra hikes to the Sunstone Mines to learn where they come from. She discovers that a sudden high price for Embergems—two hundred coins each—spurs the miners to abandon gray stones and dig frantically for the gems, filling carts until the market is flooded. When too many gems arrive, prices crash, and Lyra sees the cycle of supply in action. The story explains how price signals encourage producers to create more goods, turning an economics concept into a vivid adventure.
Prerequisite Requirements
No formal economics background is needed. Young readers will benefit from basic familiarity with buying and selling, such as visiting a store or market, and from being comfortable following a narrative with a single main character.
Learning Benefits
This book offers a concrete, story-driven introduction to the economic idea of supply, showing how a change in price can change the behavior of producers. It encourages observation of cause and effect, vocabulary growth around markets and incentives, and provides opportunities for discussions about wants, needs, and how goods reach us.
Structured Knowledge Path
The book sits at the foundation of microeconomics, specifically the law of supply. It connects to adjacent ideas like demand, market equilibrium, and incentives, and can be a springboard for exploring how prices are set, why shortages happen, and how producers respond to consumer desire.
Advancement
Concepts here prepare readers for more formal study of supply and demand curves, opportunity cost, and market dynamics. The habit of noticing how price signals guide decisions transfers to real-life skills such as budgeting, understanding sales, and recognizing how businesses choose what to produce.
Knowledge Points
- When a sudden need or high price appears, it can inspire people to increase production.
- Producers weigh the profit from different goods and choose to make the one that pays more.
- When supply increases greatly beyond buyer demand, the price falls.
- The law of supply means that higher prices lead producers to make and sell more of a good.
Skills
- explore-incentives-and-markets
- study-supply-and-demand
- use-cost-benefit-thinking
Vocabulary
- Supply
- The total amount of a specific good or service that is available to buyers.
- Producers
- The people or businesses who make or provide goods and services (like the miners).
- The Law of Supply
- The idea that when the price of a good goes up, producers are willing to make and sell more of it.
- Price
- The amount of money needed to buy something. Price is a powerful signal to both buyers (Demand) and sellers (Supply).
Reading Guidance for Teachers and Guardians
- Page 5: Pause to count the different jobs at the mine—what materials are being dug, and how does the tiny Embergem tunnel compare to the others? Ask: Why do you think only a few miners look for Embergems?
- Page 8: Notice how Elara's decision changes when she hears the price. Ask: What makes the Embergems suddenly worth so much effort? Could the same thing happen in a real market?
- Page 12: After showing the overflowing carts, ask: Why do shopkeepers lower the price when there are too many gems? What would happen if they kept it at two hundred coins?
- Page 13: Connect the story to a real example like lemonade stands on a hot day. Ask: If everyone wants a cold drink, why do lots of kids open stands? How does that show supply?