Uploaded May 2026 | Updated September 2026, 1 week ago

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What shifts the supply curve? Anything that changes a supplier's cost. Learn how input costs, technology, taxes, trade, and even expectations shift supply in economics.

You’ll learn:
- Why higher costs shift supply up and to the left
- Why lower costs shift supply down and to the right
- How improvements in technology increase supply
- How taxes, subsidies, and input prices affect producers
- How trade and market entry affect supply
- How opportunity costs and expectations influence supply

Using clear examples—from strawberries and blueberries to lumber, bagels, and orange juice—we show how economists think about supply shifts in the real world.

LEARNERS: Test your knowledge of this topic with a set of practice questions: mru.org/practice-questions/what-shifts-supply-curve-practice-questions-0

TEACHERS: This topic is covered in MRU’s free Supply, Demand, and Equilibrium Unit Plan–7 days of lesson plans including videos, interactive tools, and classroom activities. These resources are always available to teachers for FREE at MRU.org: mru.io/7t0