The notion of underutilization of labor, underemployment, emerged in the last post-war in the shadow of the early theories of economic development in backward areas. It is rooted in the marginal productivity analysis, although it could be traced back to Malthus and Ricardo, or at least to Wicksell. "Overall, there is said to underemployment when a sector or economic unit is being used more is necessary, so that the "ultimate" units of work does not really add much product. It can also be formulated in a slightly different form, saying that when there is underemployment may withdraw a portion of the workforce without thereby lower the production or yet another way that could increase the product of labor and existing equipment, if all workers work methodically and thoroughly with the resources at your fingertips.
- Teoría económica