Finance Calculators (Page 34)
Mortgage, loans, investment returns, salaries tax, savings and more.
Private Savings Calculator
From national income, net taxes and consumption, compute private savings: private savings = national income − net taxes − consumption (Y − T − C).
Estimate the central bank policy rate using the Taylor rule: i = r* + π + 0.5(π − π*) + 0.5(output gap), as a benchmark for monetary policy.
Phillips Curve Calculator
Estimate inflation from the Phillips curve: inflation = expected inflation − coefficient × (actual unemployment − natural unemployment), showing the short-run trade-off.
Fisher Equation Calculator
From nominal rate and inflation, compute the real rate: real = (1 + nominal) ÷ (1 + inflation) − 1, to see true post-inflation return.
Gini Coefficient Calculator
From individual incomes, compute the Gini coefficient — a 0-to-1 measure of income inequality; 0 is perfect equality, 1 is full concentration.
Purchasing Power Parity Calculator
From the price of a basket in two places, compute the PPP implied exchange rate to judge if a currency is over- or under-valued.
Price Elasticity of Supply Calculator
From changes in price and quantity supplied, compute the price elasticity of supply (PES), how sensitive supply is to price.
Cobb-Douglas Production Function Calculator
From total factor productivity, capital, labour and elasticities, compute output and the returns-to-scale property.
Comparative Advantage Calculator
From the output of two goods, compute the opportunity cost of producing good 1 — and thus who has the comparative advantage.
Currency Forward Rate Calculator
From the spot rate and two interest rates, compute the forward rate (covered interest parity, with days): F = S x (1 + r_f·T) / (1 + r_d·T), T = days/360.
Deadweight Loss Calculator
From the quantity change and price wedge caused by a tax or control, compute the deadweight loss: DWL = 0.5 x quantity change x price change (welfare triangle).
Interest Rate Parity Calculator
Compute the theoretical forward rate from spot and two rates under covered interest parity; judge arbitrage.