Introduction, Studies in Income and Wealth, Volume 15
    Published Date 
  
  
    Copyright 1952
  
  
    ISBN 0870141708
  
 
                  - 
      Copy CitationStudies in Income and Wealth, Volume 15 (NBER, 1952), https://www.nber.org/books-and-chapters/studies-income-and-wealth-volume-15/introduction-studies-income-and-wealth-volume-15.