A reason economic systems like sharedropping and the crop-lien system came to be was due to changes in the plantation system. What were they?

Legal contract systems such as the Italian mezzadria, the French métayage, the ... 3 Sharecropping agreements; 4 Farmer's cooperatives; 5 Economic theories of share ... Their work is heavily supervised as slave plantations were ... A new system of credit, the crop lien, became closely associated with sharecropping.