Compare the ranking of U.S. GDP (purchasing power parity) to that of other countries by visiting the CIA's World Factbook. After reading the article U.S.A comes up a bit short in global Better Life Index and comparing the relative ranking of U.S. GDP to other countries, what is the link between wealth and welfare? Do governments have a responsibility to address welfare? With references. Health and peace of mind makes me happy. How do I incorporate in this discussion?