State and Local Government Employee-Retirement Systems
Fiscal Year 2006
| Main Retirement | 2006 Retirement |
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State and Local Government Employee-Retirement Systems Fiscal Year 2006 |
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Sample Design Description of design: |
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| The FY (Fiscal Year) 2006 sample was developed in 2003 from the 2002 Government Finance Census of
Governments. This frame was updated with births, deaths, and mergers since FY 2002. In FY 2004 it became a probability sample
and was designed to produce estimates for Local as well as State and Local Retirement systems with a relative standard error of 3
percent or less on the following categories: receipts by source, payments, financial holdings, membership, and benefit payments.
For this sample, three data items of interest helped determine the initial sample sizes: total earnings on investments, total
benefits paid and withdrawals, and total holdings and investments. Units satisfying the following criteria were automatically
included in the sample with a probability of one. These units represent themselves only and are called certainty units. |
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 1) Jacket units (large units whose data are compiled in-house);
2) All State Retirement Systems;
3) Systems with Total Holdings and Investments greater than $50 million;
4) Systems in a state that had fewer than 10 local retirement systems with a probability not equal to one;
5) Systems with Total Earnings on Investments greater than $8 million, or Total Benefits Paid and Withdrawals greater than $15 million. |
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After determining the initial sample size, non-certainty governments were selected for the sample based on a probability proportional
to its size, which was based on the variable total holdings and investments. Prior to selecting the sample, the file was ordered by
state and probability of selection. |
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Weighting: |
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The weight for each unit in the sample is the inverse of that unit’s probability of being selected into the sample. For example,
for units that were included in the sample with a probability of .02, the weight is (1/.02)=50. For units that were included in
the sample with a probability of 1, the weight is 1. |
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Sample size: |
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The FY 2006 sample size is 1,077 units of which 828 had a probability of selection equal to one. Births were added to the sample with a weight of one, disincorporated units were dropped from the sample. |
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