This definition appears very rarely
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Samples in periodicals archive:
Botswana, Lesotho, Namibia, and South Africa have some of the highest levels of income inequality in the world. Since 1995, we have maintained a regional program in Southern Africa that has evolved over time to address the changing development challenges of the sub-region. Our programs increase trade and strengthen regional economic ties, address the HIV/AIDS crisis, mitigate food insecurity, and support democratic processes.