E. Napoletano is a former registered financial advisor and award-winning author and journalist. With more than 15 years of experience crafting content about all aspects of personal finance, Michael ...

John Egan is a veteran personal finance writer whose work has been published by outlets such as Bankrate, Experian, Newsweek Vault and Investopedia. Michael Adams is a former Cryptocurrency and ...

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 ...

Elysse Bell is a finance and business writer for Investopedia. She writes about small business, personal finance, technology, and more. Erika Rasure is globally-recognized as a leading consumer ...