The Core Idea

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How to See It
How to Use It
The Mechanism
Founders & Leaders in Action
Visual Explanation
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One Key Quote
— Arnold Harberger, Taxation and Welfare (1964)"The welfare cost of a tax is the loss of consumer and producer surplus that is not offset by the tax revenue collected."
Analyst's Take
Test Yourself
Where is the deadweight loss?
A government imposes a 10% tax on luxury cars. Sales of luxury cars fall by 15%. The government collects tax revenue from the cars that are still sold.
A company removes a lengthy approval process for small purchases. Previously, employees had to get manager sign-off for any purchase over $50. Now they can spend up to $500 without approval.
A city imposes a tax on sugary drinks to reduce obesity. Consumption of sugary drinks falls by 20%.