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The AlienPrep module imputes variables needed to simulate the eligibility of immigrants for SSI, AFDC/TANF, SNAP benefits, and Medicaid. These person-level variables are:
1. Year Entered USYearEnteredUS is computed from the CPS ASEC categorical variable YearInUS, which specifies a narrow range of years when a person came to the U.S. to live. This variable was made available in CPS ASEC data beginning with the March 1994 survey and is updated annually. Beginning with the conversion of the March 2015 survey data for use by TRIM3, EditedYearInUS was also made available. Except for very few cases that are edited for the immigrant imputation, it is identical to YearInUS. AlienPrep program rule YearInUSVar may be used by analysts to specify either YearInUS or EditedYearInUS for AlienPrep simulations. Specific year ranges for YearInUS codes are shown in the TRIM3 dictionary.Year ranges are defined in the array program rule YearBrackets. There is an array entry for each range, and the maximum year for each range is stored in YearBrackets.
A four-digit value for YearEnteredUS is imputed for each unit with YearInUSVar>0. For non-immigrant units for which YearInUSVar is zero, YearEnteredUS is also zero.
For immigrants who entered the country before 1950 (YearInUSVar = 1), YearEnteredUS is set to 1949.
If we are using the 1993 input data (CPS 1994), then the child’s birthyear is 1993-16 = 1977. The man, wife, and child reported entering the country in 1975-1979, but since the child was not born until 1977, they must have entered between 1977 and 1979. So for this unit, FirstYear will be 1977, and LastYear will be 1979. The man’s 30 year old brother entered in 1986-1987. His FirstYear will be 1986 and his LastYear will be 1987. If there is anyone in the unit whose birth year falls after the last year in the YearInUSVar range, an error message is generated. Imputing a Single Year in Which the Unit Arrived.Once FirstYear and LastYear have been defined, a year is randomly assigned to the unit using probabililties stored in the array program rule YearProbabilities for years prior to 2009. Probabilities stored in array program rule YearProbabilities2 are used for year 2009 and later. There is an array entry for each year. The first element in the YearProbabilities array is for 1949, the second for 1950, and so on.AlienPrep assigns YearEnteredUS as follows:
TotalProbability = .3 + .2 + .3 = .8 The initial cumulative probability would be .3/.8 = .375. If the random number is less than or equal to that, say .233, then the module would assign YearEnteredUS=1977. But if the random number is greater than that, it would increase CumulativeProbability as follows: CumulativeProbability=CumulativeProbability+.2/.8= .375+.25=.625. Let’s say that the random number is .8. If so, then increasing CumulativeProbability for the final year (.625 + .3/.8) brings us to 1.00, and we would assign YearEnteredUS = 1979. Special Imputations for Recent ImmigrantsLegal aliens arriving after August 22, 1996 were denied eligibility for most benefits, so a legal alien arriving between 1996 and 1998 who reports receiving benefits is likely to have entered the country on or before August 22, 1996. However, there are exceptions to this rule. Certain states provide benefits to legal aliens arriving after that date. There are four program rules which indicate whether receipt of benefits will be ignored for persons in a particular state for the purpose of determining year of entry-- IgnoreReportedSSI, IgnoreReportedTANF, IgnoreReportedFoodStamps, and IgnoreReportedMedicaid.For each member of the unit who is a legal alien (CorrectedCitizenship=1), AlienPrep determines for the following conditions. If any of the following conditions hold true for any legal alien in the group, then the module sets YearEnteredUS for the group to 1996.
2. YearsLivingInUSThe number of years in which the person has lived in the U.S. is calculated as follows:YearsLivingInUS = Data year - YearEnteredUS Note that the data year is one year less than the survey year, e.g., the data year for the 2015 ASEC survey is 2014. If YearEnteredUS is zero, YearsLivingInUS is defined to be zero as well. Also, some people may be imputed to arrive in the survey year (Data year + 1). For these people, YearsLivingInUS will be zero. 3. PreReformImmigrantIf a person is not a legal alien or refugee (CorrectedCitizenship is not 1 or 3), PreReformImmigrant is defined as 0. The calculation of PreReformImmigrant for legal aliens and refugees depends on the year in which the entered the U.S. (YearEnteredUS):
4. VeteransExemptionThis section creates two new person-level output variables: ExemptVeteran indicates whether the person is a legal alien or refugee who is also a veteran or current member of the armed forces. ExemptVeteranDependent identifies people who are legal aliens or refugees, and who are also either the spouse or unmarried dependent child of a veteran or current armed forces member. Unlike the variables created in the previous sections, different people in the same unit will have different values for these.ExemptVeteran is determined as follows:
5. YearsFor40QThis section and the FortyQuartersExemption section provide specifications for imputing whether a legal immigrant qualifies for the 40 quarters of work exemption. If a legal immigrant has acquired 40 quarters of work in the United States, then he or she is exempt from rules denying aliens eligibility for assistance under state and federal government programs. In determining eligibility for the 40 Quarters of Work Exemption, the immigrant can count his or her own quarters of work, those worked by a spouse during the time that the couple are married, and those worked by the immigrant’s parents before the child turned 18. In order for a quarter of work to count, it must be work that is creditable for Social Security benefits. Therefore, we will assume that work performed by an illegal alien or an alien only temporarily in the country does not count. In addition, we will ignore work performed before a person has finished his or her education (or reached age 22, whichever comes first). The imputation was developed using data from the 1993 Survey of Income and Program Participation (SIPP). The design of the imputation is very much driven by data limitations in the SIPP. Section VII.1.1 defines variables created in support of the imputations. Section VII.1.2 describes the imputation of years of work.For simulation year 1998 and future years, we will probably want to take reported receipt of benefits under the various transfer programs into account. Pre-reform immigrants already participating in these programs were allowed to continue receiving benefits through much of 1997, so reported receipt of benefits does not provide any useful information for the 40 quarters imputation for simulation year 1997. Definitions of Intermediate Variables Used in the ImputationFor purposes of describing the methodology used in the imputation, it is helpful to first define certain variables used in the methodology. Some of these variables are actually available as output under the category "For Debugging", while others exist only for the duration of the simulation.CitizenStatusOur goal is to determine whether persons with CitizenStatus=2 are eligible for the 40 quarter exemption. To do this, we’ll need to impute the person’s own years of work, as well as the years of work of certain other family members who have CitizenStatus=1 or CitizenStatus=2. Work performed by persons with CitizenStatus=3 should not be counted toward anyone’s 40 quarter exemption.1 = naturalized or native-born citizen (CorrectedCitizenship=2, 4, or 7) 2 = legal alien or alien refugee (CorrectedCitizenship=1 or 3) 3 = non-immigrants and illegal aliens (CorrectedCitizenship=5 or 6) PercentOfPovertyUsually when dealing with poverty in TRIM3, we perform the calculations ourselves rather than relying on the CPS supplied variables. However, for the purpose of AlienPrep, it is fine to use PovertyRate (which is derived during the conversion process from CPS variables).For persons in related subfamilies (FamilyType=3), use the PovertyRate from the primary family in the household (the family with FamilyType=1), rather than the PovertyRate for the related subfamily. The reason this is done is that the PovertyRate for the related subfamily is based just on the subfamily’s income and family characteristics, whereas the PovertyRate stored with the primary family is based on the income and family characteristics of the entire family. The latter is the definition to use here. AlienPrepUses three different break-downs for PercentOfPoverty:
CurrentWorkerIs a person considered a "current worker" for the purpose of the imputation?This definition of CurrentWorker is designed to match, as closely as possible, the definition in the SIPP data upon which the imputation is based. Treat a person as a CurrentWorker if MonthlyWeeksWorked is greater than zero in any or all of the months: December, January, February, and March. 0 = not considered a current worker 1 = considered a current worker, i.e. worked at least one week in December, Jan, Feb, or March PotentialWorkingYearsThe years a person could have workedEstimate the age at which the person could have begun doing "real" work, based on the person’s current age and the amount of education he or she has completed. First, assign WorkingAge based on the chart below. HighestGradeCompleted is a TRIM3 Variable, with values as indicated in the table below.
Figure out the person’s total number of potential working years. Don’t allow a value below zero. PotentialWorkingYears=max(Age-WorkingAge,0) Cap PotentialWorkingYears at the number of years living in the United States (as imputed by AlienPrep). PotentialWorkingYears=min(PotentialWorkingYears,YearsLivingInUS) If the person is a full-time student (InSchoolFullOrPartTime = 1), PotentialWorkingYears are 0. Impute Years of Qualifying Work for 40 Quarter Exemption (YearsFor40Q).We’ll need to impute years of qualifying work for each person age 15+ with CitizenStatus=2 (legal alien or alien refugee). For legal alien and alien refugee children, and for legal alien and alien refugee adults with fewer than 10 years of work, we will have to impute years of work for certain additional family members (as discussed in the FortyQuartersExemption section).YearsFor40Q should be a real value (fractions of years are allowed). If the imputation results in a value greater than 10, YearsFor40Q should be set to 10. (YearsFor40Q is topcoded at 10, because "10" is the magic number for our purposes here, and the imputations aren’t accurate enough to show the exact number of years greater than 10). However, for use in computing FortyQuarterExemption and for optional microdata output, we produce YearsFor40QUncapped, the uncapped version of YearsFor40Q.
Table 140 Quarter Imputation Program Rules:Current Workers with 18 or fewer PotentialWorkingYears Probability A Person Works A Given Percentage of Potential Working Years (0-100)
Table 240 Quarter Imputation Program Rules:Persons not currently working, with 18 or fewer PotentialWorkingYears Probability Person Works Given Percent of Potential Working Years (0-100)
Steps for performing the imputation:
If the person is currently working and a value of 0 has been assigned, set YearsFor40Q = 0.5 (we’ll give token credit for work performed during the year). Cap YearsFor40Q at 10 (as mentioned before, save the uncapped value under the name YearsFor40QUncapped).
Table 3 shows the program rules for current workers, and Table 4 shows the program rules for persons not currently working. Table 340 Quarter Imputation Program Rules:Current Workers with 19 or more PotentialWorkingYears Probability Person Works Given Number of Years (0-10)
Table 440 Quarter Imputation Program Rules:Persons not currently working, with 19 or more PotentialWorkingYears Probability Person Works Given Number of Years (0-10)
6. FortyQuartersExemptionThe forty-quarters exemption is calculated only for legal aliens and refugees (CitizenStatus = 2). For all other people, it is 0.Initialize FortyQuartersExemption to 0.
Otherwise, if the person has a spouse present (SpousesLineNumber is not 0), add the spouse’s YearsFor40Q to the person’s own YearsFor40Q. If the result is greater than or equal to 10, set FortyQuartersExemption to 2. (Reminder, YearsFor40Q should be 0 for all persons with CitizenStatus=3—so if the spouse has CitizenStatus=3, there will be nothing to add here.) Otherwise, if this is a child under the age of 18 (HhFamilyRelation is 3-7, 13, 15 or 27), count the parents’ YearsFor40Q, as well as the child’s (and the child’s spouse, if any), to determine if the child is covered by the FortyQuartersExemption. If the total years is at least 10, then set FortyQuartersExemption to 3. Note that if the child is the head of a sub-family, the parents will be the people in the FamilyWithSubfamilies who are either the head or spouse (FamilyReferenceRelation is 1 or 2) of the main family (FamilyType = 1). In all other cases, the parents are simply the head and spouse of the immediate family. Otherwise, if this is a person age 18 or older who has a parent or parents living in the household (HhFamilyRelation is 9-12), the parents’ years of work before the child turned 18 count toward the FortyQuartersExemption. (Note, this includes work performed before the child’s birth and before the child came to the US). We’ll approximate this as follows: Otherwise, if this person is a legal alien (as opposed to a refugee) who has been in the U.S. for more than 5 years, and does not qualify for an veteran exemption (either as a veteran or a dependent), the person may be imputed to qualify for the 40-quarters exemption based on the reported receipt of certain benefits as follows: Note that imputation based on reported receipt of benefits applies regardless of whether the person is married, is under 18, or is 18 or older and living with parents. 7. SponsorDeemingExemptLegal immigrants who are not refugees may be ineligible for benefits because the income of their sponsor is deemed available for their use. SponsorDeemingExempt identifies immigrants who should be considered exempt from this sponsor deeming test because they reported receiving SSI, AFDC, or SNAP benefits within a certain number of years, as defined in the program rules DeemingYearsSSI, DeemingYearsAFDC, and DeemingYearsFoodStamps. Each of these state-level program rules contains separate values for pre-reform and post-reform immigrants. If AllocFlag665 indicates the entire supplement was allocated, then no one in the unit is considered to receive public benefits.For pre-reform immigrants (PreReformImmigrant=1), if anyone in an immigrant’s family reports SSI receipt not imputed by Census and has been in the U.S. (YearsLivingInUS) for the number of years in the pre-reform value of DeemingYearsSSI or less, then all members of that family are considered exempt sfrom sponsor deeming. If DeemingYearsSSI is 0, reported receipt of SSI does not exempt the family from sponsor deeming. For post-reform immigrants (PreReformImmigrant=0), if anyone in the immigrant’s family reports SSI receipt not imputed by Census and has been in the U.S. (YearsLivingInUS) for the number of years in the post-reform value of DeemingYearsSSI or less, then all members of that family are considered exempt from sponsor deeming. If DeemingYearsSSI is 0, reported receipt of SSI does not exempt the family from sponsor deeming. Tests for AFDC, SNAP, CHIP and Medicaid are similar to the above, with the program rules and input variables changed appropriately. For the exact input variables used to determine receipt of SSI, AFDC, or SNAP benefits, see Special Imputations for Recent Immigrants above. 8. The UnitFor the YearEnteredUS, YearsLivingInUS, and PreReformImmmigrant imputations, we will want to assign the same value to all members of the FamiliesWithSubfamilies family who have identical values for YearInUSVar. Each such group is considered a unit for AlienPrep. Units can be easily identified using the output variable UnitID. Rule AdditionalDeemingExemptRate indicates the rate at which Legal Permanent Residents who are not identified as exempt from sponsor deeming based on public benefit receipt, and who are not identified as having a likely family sponsor within their household, are randomly chosen as having no family sponsor (SponsorDeemingExempt=1). If AllocFlag665 indicates the entire supplement was allocated, then no one in the unit is considered to receive public benefits. |
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