Concept
Abstract labour and concrete labour refer to a distinction made by Karl Marx in his critique of political economy. It refers to the difference between human labour in general as economically valuable worktime versus human labour as a particular activity that has a specific useful effect within the (capitalist) mode of production. As economically valuable worktime, human labour is spent to add value to products or assets (thereby conserving their capital value, and/or transferring value from inputs to outputs). In this sense, labour is an activity which creates/maintains economic value pure and simple, which could be realized as a sum of money once labour's product is sold or acquired by a buyer. The value-creating ability of labour is most clearly visible when all labour is stopped. If all labour is withdrawn, the value of the capital assets worked with will normally deteriorate, and in the end, if labour is permanently withdrawn, nothing will be left except a ghost town situation. As a useful activity of a particular kind, human labour can have a useful effect in producing particular tangible products which are used by others, or by the producers themselves. In this sense, labour is an activity which creates use-values, i.e. tangible products, results or effects which can be used or consumed. The creation of use-values is highlighted, when goods and services of poor quality are created, which are not supplied on time and mainly useless to the consumer. Labour must be applied to produce usable products, regardless of how much they are sold for, otherwise there are no use-values. If labour produces useless products or results, it is simply a waste of labour-time. So, Marx argues that human work is both (1) an activity which, by its useful effect, helps to create particular kinds of products, and (2) in an economic sense a value-forming activity that, if it is productively applied, can help create more value than there was before.
