The workforce or labour force (labor force in American English; see spelling differences) is the labour pool in employment. It is generally used to describe those working for a single company or industry, but can also apply to a geographic region like a city, state, or country. Within a company, its value can be labelled as its "Workforce in Place". The workforce of a country includes both the employed and the unemployed. The labour force participation rate, LFPR (or economic activity rate, EAR), is the ratio between the labour force and the overall size of their cohort (national population of the same age range). The term generally excludes the employers or management, and can imply those involved in manual labour. It may also mean all those who are available for work.