That&#x27;s more or less what the World Bank is doing. The dollars per day are PPP adjusted, which attempts to account for all of those things you are talking about.<p><a href="http:&#x2F;&#x2F;blogs.worldbank.org&#x2F;developmenttalk&#x2F;international-poverty-line-has-just-been-raised-190-day-global-poverty-basically-unchanged-how-even" rel="nofollow">http:&#x2F;&#x2F;blogs.worldbank.org&#x2F;developmenttalk&#x2F;international-pov...</a><p>I guess there is lots of room to quibble over how objective it is, but it is at least starting from the idea of doing an objective quantative analysis of the issue.