True.

Maybe, the small amount of money spend per person indicates that the government doesn't have sufficient money to invest in development of the infrastructure and human resources required for creating a developed economy.

If you look at South Africa's public debt, it is 43.3%[1] of their GDP. In contrast, Zambia's is 20%[2]. Maybe, what Zambia needs is to secure more loans from organizations like World Bank and invest

1 - http://en.wikipedia.org/wiki/Economy_of_South_Africa 2 - http://en.wikipedia.org/wiki/Economy_of_Zambia