# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Quality-Adjusted Life Years (QALYs)
An exploration of Quality-Adjusted Life Years, a method used to measure the benefit of medical intervention by considering both the quantity and quality of life.
Quantile
Quantile: Definition, meaning, and application in economic analysis.
Quantile Regression
An in-depth exploration of quantile regression, a method used to estimate the quantiles of the conditional distribution of the dependent variable.
Quantity Demanded
Understanding the concept of Quantity Demanded in Economics
Quantity Discount
A price reduction available to purchasers of a specified minimum quantity.
Quantity Equation
An exploration of the quantity equation, the relationship between the price level and the quantity of money.
Quantity of Money
The amount of money in circulation within an economy, comprising various classifications such as M0, M1, M2, M3, M4, and M5.
Quantity Supplied
The quantity of a good supplied at a given price, tracing out the supply curve as prices change.
Quarterly Data
Data recorded for each of the four quarters of each year, often used in national income accounts, presented both before and after seasonal adjustment.