00431nam a22001457a 4500003000800000005001700008008004100025040002100066082001300087245004200100260006300142300002500205650001300230710004200243BD-DhUL20160529172047.0160529b1949    xxua|||| |||| 000 0 eng d  aBD-DhULcBD-DhUL  a339bNAS00aStudies in income and wealth/bv. 11;  aNew York :bNational Bareau of economics research, c1949.  av. :bill. ;c23 cm.  aEconomic  aNational Bareau of economics research