In addition , one must always bear in mind that the quality of the projections can be affected by several factors inherent to economic modelling , namely : i ) errors in the formulation of the model itself and / or omission of relevant ...

Mathematical model of pasture contamination by grazing cattle & the effects on herbage intake . J. Agricultural Science , 79 , 249-57 . 1972 . et al . A bio - economic modelling project for small scale milk production systems in south ...

Mathematical model of pasture contamination by grazing cattle & the effects on herbage intake . J. Agricultural Science , 79 , 249-57 . 1972 . et al . A bio - economic modelling project for small scale milk production systems in south ...

Variation has increasingly become an object of research , instead of being perceived as a statistical residue in agro - economic modelling . From a recent study in northern Cameroon , it was concluded that " yield variations are not ...

Bio - economic modelling project for small scale milk production systems in South - East Brazil . Brasília , D.F. , Escritorio do IICA no Brasil , 1982. s.p. 91. CACERES RAMOS , H. Fortalecimiento del AGRINTER : informe sobre la acción ...

CHAPTER 3 AGRICULTURE AND THE MACROECONOMIC SETTING 3.1 Introduction Having taken a look at the economic model that held sway in the past and the one that is ascendent today , we find that agriculture fits into each one in a unique way ...

Such a model is between what is called a « < knowledge model » which tries to summarize all the knowledge for a given process but does not integrate management and a more « economic model » > , which quite often uses large empirism to ...

McConnell , K.E. ( 1983 ) " An economic model of soil conservation " in American journal of agricultural economics , February : 83-89 . Midmore , D.J. , H.G.P Jansen & R.G. Dumsday ( in print ) " Soil erosion and environmental impact of ...

Brennan , J.P. 1991 An analytical model of farmer's demand for replacement seed . Amer . J. Agr . Econ . .Nov . 1991. ... Thornton , P.K. and G. Hoogenboom 1990 Agrotechnology transfer and socio - economic modelling in Guatemala .

... for the viability of the rural inter-sectoral economic model, as well as for income distribution and poverty. That model will give rise to new options and requirements in the area of human resources training, and will make it ...