Estimating Eligibility and Participation for the WIC Program Phase I Report (2001) / Chapter Skim
Currently Skimming:
Pages 74-81
The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.
From page 74... ...
74 APPENDIX D The TRIM3 Microsimulation Model Estimates of the number of children who are income eligible for WIC presented in this report were derived from the Transfer Income Model version 3 (TRIM3) microsimulation model using data from the March 1999 Current Population Survey (CPS)
|
From page 75... ...
THE TRIM3 MICROSIMULATION MODEL 75 tax liability, the model would use individual records on families from the input database and apply the detailed federal tax rules to each family in the database. In effect, the program fills out the tax forms for each family.
|
From page 76... ...
76 APPENDIX D TRIM grounds the simulation model on a computation platform that takes advantage of relatively recent advances in information technology, such as the rise of PCs, windowed user interfaces, client/server systems, open relational databases, object-oriented programming, and the Internet. TRIM3 was introduced in 1997 and is currently being used by researchers at the Urban Institute, DHHS-ASPE, and the Office of Management and Budget (OMB)
|
From page 77... ...
THE TRIM3 MICROSIMULATION MODEL 77 about annual income from various sources. To estimate monthly income, the TRIM3 system takes the annual income amounts for each person and "allocates" them across the months of the year.
|
From page 78... ...
78 APPENDIX D Unemployment Compensation In general, annual unemployment compensation income is divided evenly across weeks of unemployment. However, for a randomly-selected 51 percent of the annual unemployment compensation recipients, the monthly amounts are lagged by one month to capture real-world delays in receipt of unemployment compensation relative to the start of a spell of unemployment.
|
From page 79... ...
THE TRIM3 MICROSIMULATION MODEL 79 bined child support and alimony the unit falls into. For each recipient, TRIM uses random numbers to pick a number of months of receipt of child support and alimony, and then uses random numbers to assign those months within the year (not necessarily consecutively)
|
From page 80... ...
80 APPENDIX D variables on the data records, augmenting the CPS-reported information. One benefit of a comprehensive model like TRIM3 is that simulated variables can be "passed" from one part of the simulation to the next.
|
From page 81... ...
THE TRIM3 MICROSIMULATION MODEL 81 hold includes an AFDC/TANF unit. For Medicaid, the filing unit may be either a family or an individual.
|
Key Terms
This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
More
information on Chapter Skim is available.