In September 2000, building upon a decade of major United Nations conferences and summits, world leaders came together at the United Nations Headquarter in New York to adopt the United Nations Millennium Declaration, committing their nations to a new global partnership to reduce extreme poverty and setting out a series of time-bound targets with a deadline of 2015 that have become known as the Millennium Development Goals (MDGs). One of the most important targets of MDGs relates to ending poverty and hunger. For instance, Target is set to halve, between 1990 and 2015 the proportion of people whose income is less than $1 a day. This study aims to summarize the essence of some major poverty indices and relating axioms to contribute to worldwide poverty reduction from academic aspects, surveying relevant literatures
