The 2002 World Development Report provides the following information for countries:
A) Per Capita GDP
B) Per Capita GDP (PPP $)
C) Population below National Poverty Line (%)
D) Population below $1 Day PPP (%)
E) Poverty Gap at $1 Day PPP (%)
F) Gini Index
Explain carefully what each of the entries in the final four entries C-F measures. What concepts are being presented and what is their importance to economic development?