Using these three special cases and Lorenz curves, Fields demonstrated the validity of the following propositions (reversing the order just presented):
1. In the traditional-sector enrichment typology, growth results in higher income, a more equalrelative distribution of income, and less poverty. Traditionalsector enrichment growth causes the Lorenz curve to shift uniformly upward and closer toward the line of equality, as depicted in Figure 5.7. 2. In the modern-sector enrichment growth typology, growth results in higher incomes, a less equal relative distribution of income, and no change in poverty. Modern-sector enrichment growth causes the Lorenz curve to shift downward and farther from the line of equality, as shown in Figure 5.8. 3. Finally, in the case of Lewis-type modern-sector enlargement growth, absolute incomes rise and absolute poverty is reduced, but the Lorenz curves will always cross, indicating that we cannot make any unambiguous statement about changes in relative inequality: It may improve or worsen.