Income and the Measurement of the Relative Capacities of the States
    Published Date 
  
  
    Copyright 1939
  
  
    ISBN 0870141589
  
 
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      Copy CitationStudies in Income and Wealth, Volume 3 (NBER, 1939), chap. 7, https://www.nber.org/books-and-chapters/studies-income-and-wealth-volume-3/income-and-measurement-relative-capacities-states.
 
     
    