Businesses measure productivity in two ways: marginal and average. The calculation of both types often yields different answers as a result of the fundamental differences behind each measurement. In ...

Sean Ross is a strategic adviser at 1031x.com, Investopedia contributor, and the founder and manager of Free Lances Ltd. Erika Rasure is globally-recognized as a leading consumer economics subject ...

Mary Hall is a editor for Investopedia's Advisor Insights, in addition to being the editor of several books and doctoral papers. Mary received her bachelor's in English from Kent State University with ...