劳动力；劳动(labor)
在经济学中，劳动力是指以挣工资为生的人们的总体。古典经济学中，劳动是三大生产要素之一，另外两者为资本和土地。劳动也可指体力劳动者的服务，包括人类在生产财富中所提供的有价值的服务，而不是累积和提供资本。在现代经济生活中，劳动的目的是为其产品，或是为了要求分享一部分社会工业的总产品。市场中某特殊种类的劳动，其单位时间的价格或是工资率不仅决定於劳动者的技术效能，而且也决定於对劳动者所能提供的那种劳务的需求和其他生产手段的供应情况。其他影响工资的因素包括劳动者的训练、技术、智力、社会地位、升迁的前景和工作的相对难度。将所有的因素列入考虑使经济学家们几乎不可能替付出的劳动力定下标准值。取而代之的是，经济学家经常以将劳动力用於不同用途所制造出来产品的量和价值来加以比较。
English version：
labor
In economics, the general body of wage earners. In classical economics, labor is one of the three factors of production, along with capital and land. Labor can also be used to describe work performed, including any valuable service rendered by a human agent in the production of wealth, other than accumulating and providing capital. Labor is performed for the sake of its product or, in modern economic life, for the sake of a share of the aggregate product of the community's industry. The price per unit of time, or wage rate, commanded by a particular kind of labor in the market depends not only on the technical efficiency of the laborer but also on the demand for his services and on the supply of other workers. Other variables include the training, skill, and intelligence of workers and the social status, prospects for advancement, and relative difficulty of the work. All these factors make it impossible for economists to assign a standard value to labor performed. Instead, they often compare different uses of the available supply of labor with reference to the quantity and value of the product they yield.