For a large sample of 61 developing countries, over the period 1980-95, we calculate a measure of the efficiency with which national political-economic systems convert a given volume of material resources (GNP per capita) into human development (longevity, education and literacy) for their...

For a large sample of 61 developing countries, over the period 1980-95, we calculate a measure of the efficiency with which national political-economic systems convert a given volume of material resources (GNP per capita) into human development (longevity, education and literacy) for their...