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A Bayesian Subjective Poverty Line, One Dollar a Day Revisited

Zhou Xun () and Michel Lubrano ()
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Zhou Xun: Aix-Marseille University (Aix-Marseille School of Economics), GREQAM, EHESS.

No 1302, AMSE Working Papers from Aix-Marseille School of Economics, France

Abstract: This paper provides a new estimation of an international poverty line based on a Bayesian approach. We found that the official poverty lines of the poorest countries are related to the countries’ mean consumption level. This new philosophy is to be compared to the previous assumptions made by the World Bank in favour of an absolute poverty line. We propose a new international poverty line at $1.48 per day (2005 PPP) based on a reference group consumption level. This figure is much higher than that proposed by the World Bank ($1.25 in 2005 PPP), but still within a reasonable confidence interval. By this standard, there are more than 1.7 billion people living in poverty.

Keywords: Poverty line; Bayesian inference. (search for similar items in EconPapers)
New Economics Papers: this item is included in nep-cwa
Date: 2013-02-05, Revised 2013-02-05
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