Have Millennium Development Goals on reducing poverty lost their relevance?

# The percentage of the world's population living on less than $1 per day has halved in twenty years. However, most of this improvement has occurred in East and South Asia.

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# The world is on course to halve extreme poverty by 2015, but Africa will fall far short of the U.N.'s Millennium Development Goals.

# Purchasing parity of a 1$ wage in 1990 has lost out to inflation in 2008, which renders the millennium development goal about extreme poverty meaningless.