| 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 | 70 | 2.0 | .5 | 1.0 | 2.5 |
| Low income | 60 | 3.0 | 1.0 | .9 | 3.9 |
| Medium income | 50 | 3.0 | 3.0 | .6 | 4.8 |
| High income | 25 | 2.0 | 4.0 | .5 | 4.0 |
| Very High income | 10 | 1.0 | 3.0 | .2 | 1.6 |
| Highest income | 5 | 0.1 | 2.0 | .1 | 0.3 |
| 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. | |||||