The world of microeconomics and business decision-making hinges upon a key concept: marginal cost. In the simplest terms, marginal cost represents the expense incurred to produce an additional unit of ...

Understanding the expenses you find on the income statement is key to making smart investments. For the beginning investor, one of the most important keys to learning about a business is understanding ...

A change in demand affects your sales and impacts your variable costs. As your sales grow, your variable costs increase. As your sales fall, your variable costs decrease. If you raise or lower your ...

Brian Beers is a digital editor, writer, Emmy-nominated producer, and content expert with 15+ years of experience writing about corporate finance & accounting, fundamental analysis, and investing.