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.
Notice especially that the formal definition of expense refers to two balance sheet categories: (1) Owner's equity and (2) Assets. And, every expense involves using up one kind of asset or another. It is the depletion, or using up of assets that distinguishes expenses from other kinds cost events.