Disposable income Disposable income, also known as disposable personal income (DPI), is the amount of money that households have available for spending and saving after income taxes have been accounted for. Disposable personal income is often monitored as one of the many key economic indicators...

Household Expenses Household expenses represent a per-person breakdown of general living expenses. They include the amount paid for lodging, food consumed within the home, utilities paid, and other costs. The sum of all the expenses is then divided by the number of family members residing...

Compound Interest Compound interest (or compounding interest) is interest calculated on the initial principal, which also includes all of the accumulated interest of previous periods of a deposit or loan. Thought to have originated in 17th century Italy, compound interest can be thought of as...

Income Inequality Income inequality is how unevenly income is distributed throughout a population. The less equal the distribution, the higher income inequality is. Income inequality is often accompanied by wealth inequality, which is the uneven distribution of wealth. Populations can be divided up in different...