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2.2.3 Estimation of Benefits <br />A conservative approach was used to estimate benefits. For respondents who failed to <br />provide sufficient information, the data used from the sample of respondents is unlikely to <br />result in an overestimate of benefits. <br />In keeping with this conservative approach, reduction in government support was not <br />included in the calculation of overall benefits because the information provided by <br />respondents on this topic was scant. Each of the remaining two benefits was calculated <br />individually for each qualified case (survey respondent). The benefits were then summed <br />across all qualified cases to calculate the total benefits. The general procedure for calculating <br />each of the benefits (excluding the benefit from reduction in public support) from the sample <br />of Santa Ana WORK Center clients is discussed below and the detailed calculation procedure <br />is provided in Appendix D. <br />Additional Tax Revenue from Santa Ana WORK Center Clients — This tax revenue comes <br />from four sources: <br />• Payroll Tax <br />• Federal Income Tax <br />• State Income Tax <br />• Sales Tax <br />The tax rate data provided in the Phase I and Phase II ROI studies was utilized here. Sales <br />tax was applied to the fraction of the annual income estimated as spent on taxable goods <br />and services. <br />Additional tax revenue was calculated by subtracting the tax revenue from income from the <br />previous job (zero for those respondents who were unemployed) from tax revenue from <br />income from new job. <br />Additional Tax Revenue from the Community — The change in the income of the community <br />due to change in income of Santa Ana WORK Center clients was estimated using an income <br />multiplier. The Phase I ROI study estimated the value of the income multiplier to lie <br />between <br />1.6 and 2.0. For the Phase II RO1, the lower bound of 1.6 was used. This means that the <br />change in the income of the community was 60% of the amount of change in Santa Ana <br />WORK Center clients' incomes. Ilowever, since the U.S. economy has been in a severe <br />economic recession since December 2007, many firms have laid off workers resulting in <br />higher unemployment. In addition, there are significantly fewer jobs available. As a result, <br />consumer spending has fallen significantly so that the income multipliers used in the previous <br />ROI studies are no longer valid and would provide an overestimate of the income of the <br />community. Consequently, for the Phase III ROI, the income multiplier was set to 1.3. The <br />G •l NO-19.] <br />