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fin.Laffer-curve-optimal-tax Calculator
Models the Laffer Curve to estimate optimal tax rate for revenue maximisation from current rate and elasticity assumptions. The Laffer Curve theory underpins supply-side tax policy — the key empirical debate is where the revenue-maximising rate actually falls.
Inputs
T Pct
Percentage paid as tax. After-tax return = pre-tax return × (1 − tax rate). Enter as a percentage (e.g. 25 for 25%).
T Opt Pct
Total income generated before any costs are deducted. Profitability depends on how much survives after expenses.
Gdp Usd
Reference formula or conversion factor shown for context.
Results
estimated tax revenue R ($)
The value at the specified point or condition.
revenue at optimal rate R* ($)
The value at the specified point or condition.
revenue gap (R* − R) ($)
Sample size or count used in the calculation.
Laffer curve
Reference formula or conversion factor shown for context.
current rate vs optimal
Electric charge flow rate (A). Governs wire sizing — too much current causes dangerous heating. Fuses protect circuits from overcurrent.