This study presents a comparison of the 1947, 1958, 1963, 1970, and 1980 regional outputs estimated using the column coefficient and gravity coefficient models. An evaluation is made of the accuracy of the two models in estimating 1947, 1958, and 1963 outputs. A detailed review of the industrial and regional estimation errors is provided by the authors, supplemented by appendix tables showing the errors for each of 10 industries in each of 9 regions.
Fencl, Zdenek and Ng, Nathaniel K., "Comparison Tests of the Column Coefficient and the Gravity Coefficient Models" (1974). Theory and Methods. 15.