Workday Unit, a specific economic category used in the USSR for measuring the labour inputs of collective farmers and their participation in the individual consumption fund. In the USSR, the workday unit was introduced in the early 1930s. It played an important role in implementing 391 the economic law of distribution according to work done and boosting the interest of collective farmers in the results of their labour. The workday unit was used to evaluate jobs of various complexity. The number of workday units determined the work participation of every farmer in the social economy. The specifics of payment for farmers’ work, determined by collective farm-and-cooperative property, as well as the essential differences in the levels of economic development of individual farms led to members from different collective farms receiving different numbers of workday units for one and the same job. The worth of the workday unit was determined only at the end of the economic year. The need for the workday unit was determined by the specific historical conditions and the level of development of farm production. As the latter gained in strength and became increasingly socialised, its commodity capability increased and farm profits grew, the conditions arose for paying farmers monthly wages (see Payment for Work on Collective Farms).