Improving Information for Social Policy Decisions -- The Uses of Microsimulation Modeling Volume II, Technical Papers (1991) / Chapter Skim
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Pages 169-171
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From page 169... ...
When the TRIM2 household microfile is completed, the TRIM2 master routines MONTHS, U8AFDC, and RANDOM are run to create additional variables needed by the TRIM2 simulation modules. For example, He U8AFDC module creates the variables that identify the different types of filing units used by the tax/transfer systems modeled in TRIM2.
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From page 170... ...
These savings were more than balanced by the one-time cost of producing the custom TRIM2 data files. TRIM2 uses the following techniques to efficiently process its database files: Database creation creates a master file that contains all of the variables' output from the creation process and an active file that contains only the 50 most commonly used variables.
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From page 171... ...
Many transfer programs require monthly income variables, and the year/month component is used to distinguish different monthly variables within the same year as created by the MONTHS master routine. This flexible naming scheme along with the self-defining nature of TRIM2 data files is one of the most powerful features of TRIM2.
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