Stevenson, Betsey (contributor); Wolfers, Justin (contributor) - 2008
communication between science, politics and business. IZA is an independent nonprofit
organization supported by Deutsche Post World … Gallup for access to and help with the
Gallup World Poll. Rohak Doshi and Michael L. Woodford provided excellent research …
subjective well-being data. Across the world’s population, variation in income explains a sizable proportion of the
variation in …