Why some countries are poor and some rich - a non-Eurocentric view by Deniz Kellecioglu
Such an excellent paper, on why lighter skin color is closely correlated with greater economic wealth across the globe, between and within countries. Since the consensus in biology is that human concepts of "race" have no validity as biological categories but only as social constructs, this stark finding cannot be based on inherent "racial" superiority or inferiority. If you can't answer the question of why some countries are poor and some are rich, then you should read this article.
"...the lightest[-skinned] human ethnic group have [sic] about 1,6 times more GDP per capita than the second lightest group, six times more than the third group, and almost 12 times more than the fourth group. Put differently, the darkest ethnicities have only nine percent of the GDP levels of the lightest ones. This confirms the indication that there is a substantial orderly connection between nuances of morphological traits and economic levels in the world today."