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the claim

A specific tax shifts supply curves upward and reduces equilibrium quantity

the verdict
COMMON KNOWLEDGE
Legacy classification; evidence review pending
Recorded sources
no sources on either side

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that a specific tax shifts supply curves upward and reduces equilibrium quantity?

This claim is a fundamental economic principle regarding market equilibrium and taxation; no citation is needed.

Verdict: COMMON KNOWLEDGE · 0 sources for, 0 against · Last checked

The analysis

The claim states a basic microeconomic truism derived directly from the standard supply-and-demand model where a unit tax shifts the supply curve vertically by the amount of the tax and establishes a new equilibrium with a lower quantity.

What does the evidence say?

The claim states a basic microeconomic truism derived directly from the standard supply-and-demand model where a unit tax shifts the supply curve vertically by the amount of the tax and establishes a new equilibrium with a lower quantity.

Receipt History
first checked04 Aug 2026
judged → COMMON KNOWLEDGE · 9504 Aug 2026
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