 Differential and absolute ground rent

Differential ground rent and absolute ground rent are concepts used by Karl Marx in the third volume of Das Kapital to explain how the capitalist mode of production would operate in agricultural production, under the condition where most agricultural land was owned by a social class of land-owners who obtained rent income from those who farmed the land.The farm work could be done by the landowner himself, the tenant of the landowner, or by hired farm workers.