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, ...

A key risk-management tool in the complex world of derivatives margin trading is variation margin. Variation margin is used to fully collateralize derivative contracts and ensure the stability of the ...

Steven Nickolas is a writer and has 10+ years of experience working as a consultant to retail and institutional investors. Portfolio variance is a measure of the dispersion of returns of a portfolio.