| OCR Text |
Show SOURCES AND QUALITY OF DATA A set of water coefficients is a necessary requisite to the use of input- output economics in the analysis of the water needs of Utah and the resulting economic effects of demand changes in the various productive activities of the state. These coefficients are usually ratios of the volume of water ( intake, consumption, or use) to the dollar volume ( output, value added, or wages paid) of a particular industry sector. This alone gives nine possible coefficients - - and others could be listed. A decision was made to use water intake coefficients in this study. Use and consumption coefficients may be considered later. Intake deals only with the problem of the quantity of water. If the quantity of fresh water is sufficient for the intake needs of all feasible industrial expansion, the problem of the polluted outflow is much simpler than if this outflow must be purified and reused. Water quality, however, is not considered in this study. Coefficients: Vj., V2, V3 The primary set of water intake coefficients, Vj ( intake in thousands of gallons per dollar of output), is taken from several secondary sources. For the ten manufacturing sectors they are a weighted average, according to the Utah mix, of the four - digit national water coefficients. The other coefficients were taken from [ 16] and [ 12]. There is no pretense that these are necessarily good estimates of the true Utah water coefficients; on the other hand, there is enough consistency between the results of our study and other studies to |
