Table 2 Comparison of growth of demand for agricultural commodities, at different stages of development (hypothetical cases).
Levels of development Percentage of population in agriculture Annual rate of population growth Annual rate of income growth Income elasticity of demand Annual rate of growth in demand1
Very low income 702.0.51.02.5
Low income 603.01.0.93.9
Medium income 503.03.0.64.8
High income 252.04.0.54.0
Very High income 101.03.0.21.6
Highest income 50.12.0.10.3
1The total annual rate of growth in demand is the sum of the population effect and the income effect. The income effect is calculated by multiplying the income elasticity of demand by the rate of income growth.

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