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.
Company expenses can be usually variable or fixed. A mixed expense is the combination of both. A fixed expense in your company may be something like your rent, it may be equipment that you lease or rent. It's an expense that is going to be the same each month throughout the length of the contract. A variable expense is one that changes.