The third link takes you there which has definitions for the term family, as well as population breakdowns.  The United State Census Bureau presents them.<p>I linked to a paper by the IMF where they could not find any evidence that redistribution hurt growth.<p>To my knowledge GDP captures changes in efficiency.  If we become more efficient we produce more stuff.  What efficiency changes do you think are invisible to GDP but make the poor&#x27;s life significantly better?