aid business development development-economics economic-development economic-empowerment economic-growth economic-inequality economic-injustice economic-justice economic-policies economic-policy economic-sustainability economic-theories economic-theory economicconditions economics economics-of-poverty education environmental-sustainability foreign-aid global-development global-economy global-inequality global-poverty globalization homelessness income-inequality infrastructure international-aid international-cooperation international-development international-relations jeffrey-d.-sachs millennium-development-goals political-economy poverty poverty-alleviation poverty-alleviation. poverty-cycle poverty-eradication poverty-in-third-world-countries poverty-reduction poverty-research poverty-solutions poverty-trap poverty-traps public-health public-policy resource-allocation social-inequality social-justice socialsciences sustainable-development sustainable-growth the-end-of-poverty:-economic-possibilities-for-our-time united-nations world-economy