Companies use variance analysis to compare financial performance changes from one month to the next, or perhaps from one quarter to another or year to year. Typically, actual financial results are ...

Facilities that focus on manufacturing and production track two kinds of costs: fixed costs and variable costs. The variable costs are those that change when production levels change: raw materials, ...

Financial word of the day: Heteroscedasticity describes a situation where risk (variance) changes with the level of a variable. In financial models, this means volatility is not constant. Most pricing ...