Media type: E-Article Title: New Indexes of Production and Trade Contributor: Johnson, Norris O. imprint: Informa UK Limited, 1938 Published in: Journal of the American Statistical Association Language: English DOI: 10.1080/01621459.1938.10503532 ISSN: 1537-274X; 0162-1459 Keywords: Statistics, Probability and Uncertainty ; Statistics and Probability Origination: Footnote: