Word: inputs
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Preparation of the table just described, which shows input-output relations in current money values is only the first step of Leonteif's analysis. The second step is to "invert the matrix," producing a table of coefficients that shows the amounts of every other product required to bring into existance a dollar's worth of any given product...
...main limitations of the table is it necessitates (assuming) technological conditions unchanged for the period of the forecast. A large, 450-catagory input-output table takes about two years to complete. This time lag, however, has not proven as serious as critics had predicted. In the United States, calculations based on 1947 figures were found to apply closely to conditions in 1952. Leontief and members of the Project are, however, developing a dynamic model to remove this limitation...
...Russians have also manifested interest in input-output analysis, and are now training people to perform the necessary operations. Leontief, who visited his native Russia briefly last spring, believes that although they are "having a hard time justifying the use of an analytical tool developed by a capitalist," the Russians will resort to it soon. Certain revisions have to be made in U.S.S.R. statistical methods in order to facilitate use of the analysis, Leontief added...
...spite of the adoption of input-output analysis by 35 interested foreign countries, the United States government has completely neglected the system in recent years. The last table devised for the U. S. economy was the 450-category chart made up in 1947. Interest at that time was occasioned by a wish to know the impact throughout the economy of an expansion of government spending on arms--the extent to which other types of production would have to contact, and the "bottle necks" that might arise...
Outside the government American industries and local groups have developed several input-output tables. The Pennsylvania Railroad has based one on industries and commercial establishments that have grown up alongside its tracks. A massive report on the results of its research was published by the railroad. "This is not an academic project," Leontief remarked, "but it is practical." In St. Louis a table based on the metropolitan area has been constructed. A banking house in Berkeley, Calif., has also completed a local chart...