The purpose of commodity buffer stocks is
(a) to moderate price fluctuations.
(b) to raise commodity prices.
(c) to encourage commodity substitution.
(d) to guarantee national security.
Answer:
The following income distribution data are for Brazil.
(a) Carefully graph the Lorenz curve, labeling the axes.
(b) Brazil’s national income is about $300 billion. What is the approximate dollar
income of the bottom 20%? Bottom 40%?
(c) Brazil’s population is approximately 150 million. Suppose that each household
makes the average income for its quintile. What is the level of poverty if the poverty
line is $400 per capita?
(d) Suppose one percent of national income were transferred from the richest 20% of
households to the poorest 20% of households. Show the effect on relative inequality.
(e) Under the same transfer, what is the effect on poverty?