In medical research, cross-sectional studies differ from case-control studies in that they aim to provide data on the entire population under study, whereas case-control studies typically include only individuals with a specific characteristic, with a sample, often a tiny minority, of the rest of the population.
(redirected from Variable Expense) Also found in: Dictionary, Wikipedia. A cost that is directly proportional to the volume of output produced. When production is zero, the variable cost is equal to zero. A cost to a person or business that varies over time according to a number of factors.
Expense. Definition: An expense is the reduction in value of an asset as it is used to generate revenue. If the underlying asset is to be used over a long period of time, the expense takes the form of depreciation, and is charged ratably over the useful life of the asset.or example, if goods are sold in January, then both the revenues and cost of goods sold related to the sale transaction should be recorded in January. An expense is not the same as an expenditure. An expenditure is a payment or the incurrence of a liability, whereas an expense represents the consumption of an asset.