| De Klerk (1984a) |
Author's survey of 61 maize farms in six magisterial districts of the Western Transvaal (Coligny, Delareyville, Koster, Lichtenburg, Schweizer-Reneke, Wolmaransstad), covering harvesting, delivery and weeding 1968-81 |
1968-1981 |
Main evidence for technology adoption, farm size, yields, seasonal and permanent employment, worker composition, and farmers' stated reasons for mechanizing. |
| De Klerk (1984b) |
Author's survey of 61 maize farms in six Western Transvaal magisterial districts (Coligny, Delareyville, Koster, Lichtenburg, Schweizer-Reneke, Wolmaransstad), 1980-81 agricultural year |
February-March 1982 (data for 1980-81 agricultural year; some farms back to 1968) |
Primary source for permanent, seasonal and domestic wage rates, worker numbers per family, food and housing, and thus family income estimates and the poverty analysis. |
| De Klerk (1984c) |
Author's survey of 61 maize farms in six Western Transvaal magisterial districts (Coligny, Delareyville, Koster, Lichtenburg, Schweizer-Reneke, Wolmaransstad), Feb/March 1982 |
1968-1981 (recall data; survey Feb/March 1982; analysis on 1968, 1973, 1977, 1981) |
Main source for mechanization, employment, wages, team composition, worker residence and farmers' reasons for mechanizing. |
| De Klerk (1984c) |
M. J. de Klerk, 'The Incomes of Farm Workers and Their Families', Second Carnegie Inquiry Conference Paper No. 28, 1984 |
1968-1981 |
Companion study that supplies wage composition, estimation method and the correlation of mechanization with family incomes. |
| De Klerk (1984c) |
M. J. de Klerk, unpublished M.A. thesis, University of Cape Town, 1983, 'Technological Change and Employment in South African Agriculture' |
1968-1981 |
Underlying research on which the article is based. |