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Published online by Cambridge University Press: 28 April 2015
In a recent article in this journal, DiPietre, Walker, and Martella presented the derivation of the Total Requirements Tables for the 1972 U.S. input-output study. As this same derivation is available from the Bureau of Economic Analysis, it is unfortunate that the article contains a minor algebraic error.
The error is made in the derivation of equation 7 in the article and is carried through equations 8 and 9.