That is the new, "Kindle singles-length" book by Lane Kenworthy, who writes the blog Consider the Evidence. It is about how the poor are making, or not making, progress, and also how the poor could make better progress. I especially liked the chapter on how the quality of government expenditure can help alleviate the consequences of poverty. It is due out in 2011, from Oxford University Press, so why are there still no links for the book, Amazon or otherwise? In any case, recommended.