TY  - BK
AU  - Bellamy,M.
AU  - Greenshields,B.
TI  - Government intervention in agriculture:  Cause and effect
T2  - IAAE Occasional Paper
U1  - 338.1 
CY  - Aldershot (United Kingdom)
PB  - IAAE*Gower
KW  - Agricultural policies
KW  - Argentina
KW  - Bangladesh
KW  - Brazil
KW  - Cote d'ivoire
KW  - Credit
KW  - Dominican republic
KW  - Economics
KW  - AGROVOC
KW  - Exports
KW  - Food aid
KW  - Food production
KW  - Gatt
KW  - India
KW  - Japan
KW  - Kenya
KW  - Less favoured areas
KW  - Manihot esculenta
KW  - Marketing
KW  - Mexico
KW  - Price policies
KW  - Rural development
KW  - Soybeans
KW  - Subsistence farming
KW  - Technical progress
KW  - Trade agreements
KW  - Trade liberalization
KW  - Trade policies
KW  - West Africa
KW  - Wheat
KW  - Farming systems
N2  - Sudan'. irrigated subsector is the largen in lub-Saharan Atria. Firming is practised under scheme?mandated rotation with highly centralized decision making. Under this system. labour is the major input for which the lenant has allocation flexibility both doring the season and cross the three crops grown, sorghum, cottom and groundnuts. This paper analyzes the risk attributes of the production technology and measures farmer's attitudes towards risk in the irrigation schemes of Sudan. Stochastic production functions are specified where risk increasing and risk reducing input effects are allowed. Single-equation and systems procedures are employed to estimate the parameters of the firs two moments of the distribution of crop yields. The analysis supports the existence of aggregate indices for weeding and harvesting labour for cotton and sorghum while the hypothesis of separability in hired and family labour is rejected. The form of labour contract for hired labour is found to have significant implications on its production risk effects. When hired labour is paid in cash, production risks increase, as is the case with cotton and sorghum. When sharecropping takes place, as in groundnuts, production risks decrease with increased labour use. Supply behaviour of the tenant farmers under production uncertainty is simulated using a farm programming model
ER  -