Here are entered works on the collective human activities involved in the production and distribution of goods and services. Works on the physical or mental exertion of individuals to produce or accomplish something are entered under Work.
--subdivisions Supply and demand under occupational groups and types of employees and Employees--Supply and demand under types of industries, e.g. Construction industry--Employees--Supply and demand
--subdivision Defenses under names of countries, etc; and subdivision Operational readiness under military services, e.g. United States--Armed Forces--Operational readiness
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