Efficiency Ratio: Definition, Formula, and Example
Introduction The efficiency ratio is a family of metrics that measure how effectively a business uses assets, liabilities and operating resources to generate revenue.…
How Efficiency Is Measured
Efficiency describes how well an entity — a person, machine, business, or market — converts inputs into useful outputs. It is a measurable concept…
Effective Yield? Definition, Calculation, and Example
Key takeaways – Effective yield (also called effective annual yield, EAY) measures the annual return on a bond when coupon payments are reinvested at…
Effective Tax Rate: How It’s Calculated and How It Works
Key Takeaways – The effective tax rate is the average rate at which an individual or corporation’s income is taxed: total tax paid divided…
Effective Annual Interest Rate: Definition, Formula, and Example
Overview The effective annual interest rate (EAR), also called the effective rate or annual equivalent rate (AER), is the actual annual return on an…
Effective Duration: Definition, Formula, and Example
Effective duration measures a bond’s price sensitivity to small changes in interest rates when the bond’s cash flows may change as rates move (for…
Effective Date
An effective date is the date on which an agreement, transaction, statute, policy, or change becomes legally operative and binding. In contracts it determines…
Effective Gross Income (EGI): Definition and Calculation Formula
Effective Gross Income (EGI) is the realistic, income-producing potential of an income property after accounting for typical income shortfalls. In simple terms: EGI =…
Education IRA: Definition, Rules and Limits, vs. 529 Plan
An Education IRA—now formally called a Coverdell Education Savings Account (ESA)—is a tax-advantaged investment account designed to help pay qualified education expenses for a…
Durbin Watson Test: What It Is in Statistics, With Examples
The Durbin–Watson statistic is a diagnostic used after an ordinary least squares (OLS) regression to detect first‑order autocorrelation (serial correlation at lag 1) in…