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Externalities Calculator
Calculate external costs, benefits, and optimal policy interventions
Negative Externality
Positive Externality
Pigouvian Tax
Market Data
Private Market Price ($):
Private Market Quantity:
External Cost per Unit ($):
Social Optimum
Social Optimal Price ($):
Social Optimal Quantity:
Calculate Negative Externality
Market Data
Private Market Price ($):
Private Market Quantity:
External Benefit per Unit ($):
Social Optimum
Social Optimal Price ($):
Social Optimal Quantity:
Calculate Positive Externality
Pigouvian Tax Calculation
External Cost per Unit ($):
Current Market Quantity:
Target Optimal Quantity:
Price Elasticity of Demand:
Calculate Pigouvian Tax
Externality Analysis Results
Total External Cost/Benefit:
$0.00
Deadweight Loss:
$0.00
Optimal Pigouvian Tax/Subsidy:
$0.00
Tax Revenue (if applicable):
$0.00
Welfare Gain from Correction:
$0.00
Market Efficiency Improvement:
0%