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keisanHigh-precision calculations for everyday life and work

Calculates the surplus analysis for ad valorem taxes.

Author: shiroeExecutions: 386

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We will calculate the surplus analysis for an ad valorem tax.
 Consider a problem in which the government imposes an ad valorem tax on a good in a perfectly competitive market. The tax is levied on firms, which are assumed to pass it on to consumers through prices.
Assume that the demand and supply functions are given by linear equations.
 Since the tax burden on consumers and producers depends on the ratio of the price elasticity of demand to the price elasticity of supply at the pre-tax equilibrium point, the program also calculates and outputs the ratio of elasticities and the ratio of tax burdens for reference. The denominator for elasticity is demand, and for tax burden, it is the producer.
 In addition, calculate and output results for government tax revenue based on “common calculation errors” for reference.
Please enter the constant terms and coefficients for the demand and supply functions. The format is
D = b + aP and S = f + cP. If the problem specifies the inverse demand or inverse supply function, please convert it to the standard form before entering the values.
For an ad valorem tax rate t of 8%, enter 0.08; for 10%, enter 0.1.
Assume the tax rate is between 0 and 1.
When calculating the price elasticity of demand, multiply by -1.
The constant term b in the demand function
 Enter a positive value
Coefficient a of the demand function
 Enter a negative value
Constant term f of the supply function
Enter a zero or a negative value.
Coefficient c of the supply function
Enter a positive value
Ad valorem tax rate t
Enter a value between 0 and 1 (inclusive).
Pre-tax Equilibrium Price 
Pre-tax Equilibrium Quantity 
Post-Tax Equilibrium Price 
Post-Tax Equilibrium Quantity 
Pre-tax consumer surplus 
Pre-tax Producer Surplus 
Pre-tax social surplus (total surplus) 
Post-Tax Consumer Surplus 
Post-Tax Producer Surplus 
Post-Tax Social Surplus (Total Surplus)  
Consumer Tax Burden 
Tax Burden on Producers 
Government Tax Revenue 
Price elasticity of demand at the pre-tax equilibrium point 
Price elasticity of supply at the pre-tax equilibrium point 
Elasticity Ratio  Supply/Demand
Tax Burden Ratio  Delete/Create
*Reference* Common Mistakes in Tax Revenue Calculations This is an “incorrect calculation result” derived from the “Tax Revenue Calculations Prone to Errors” section.
Loss of Welfare (Deadweight Loss) 
R5 (2023). July 5 (Wed)_Surplus Analysis of Ad Valorem Tax_001
Revised_002.

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