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REVIEW OF SEASONAL ADJUSTMENT FACTORS
Starting with the Unemployment Insurance (UI) Weekly Claims Press Release issued
However, in the presence of a large level change in a time series, multiplicative seasonal adjustment factors can result in a systematic overfitting or underfitting of the series; in such cases, additive seasonal adjustment factors are preferred, as they tend to track seasonal fluctuations more accurately in the series and have smaller revisions. Before the pandemic, the unemployment insurance claims series used multiplicative models to seasonally adjust claims. From

Now that most of the large effects of the pandemic on the UI series have subsided, the seasonal adjustment models are again specified as multiplicative models. Statistical tests show that the series UI should, in normal times, be estimated multiplicatively. While the pandemic period remains within the five-year review period, the UI series will use a hybrid adjustment approach. For the most volatile economic periods of the pandemic, the series will continue to be adjusted additively for the revised series. Before and after these periods, the series will be adjusted multiplicatively. For consistency, all seasonal factors on our website are now displayed as multiplicative where any additive factors have been converted to implied multiplicative factors. Note that in recent weeks, beyond the most volatile period in the series, any change from additive to multiplicative may result in larger-than-usual one-time revisions to seasonally adjusted estimates. If you have further questions about the seasonal adjustment methodology, please refer to the official UI Claims Seasonal Adjustment Factors release page or contact the BLS directly through the Local Area Unemployment Statistics web contact form.
See form here: https://www.dol.gov/newsroom/releases/eta/eta20220407
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UNEMPLOYMENT INSURANCE WEEKLY CLAIMS SEASONALLY ADJUSTED DATA
in the week ending
The seasonally adjusted insured unemployment rate was 1.1 percent for the week ending
NOT ADJUSTED DATA
The anticipated number of actual initial claims under state programs, unadjusted, totaled 193,137 in the week ended
The anticipated unadjusted insured unemployment rate was 1.2 percent for the week ending
The total number of continuous weeks claimed for benefits in all programs for the week ending
During the week ending
Initial claims for UI benefits filed by former federal civilian employees totaled 489 in the week ending
There were 8,777 continuous weeks claimed filed by former federal civilian employees the week ending
Highest rates of insured unemployment in the week ending
See charts and tables here: https://www.dol.gov/newsroom/releases/eta/eta20220407
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TECHNICAL NOTES
This news release presents the weekly unemployment insurance (UI) claims reported by each state’s unemployment insurance program offices. These claims can be used to monitor workload volume, evaluate state program operations, and to assess labor market conditions. Initially, states report claims taken directly by the state responsible for benefit payments, regardless of where the claimant filing the claim resided. These are the basis for the anticipated initial claims and continuing claims reported each week. This data comes from ETA 538, Weekly Advance Report of Initial and Continuing Claims. The following week, initial claims and continuing claims are reviewed based on a second report from the states that reflects claimants by state of residence. This data comes from the ETA 539, Extended Benefit Activation Data Report, and Weekly Claims.
A. Initial Claims
An initial claim is a claim filed by an unemployed person after separation from an employer. The claimant requests a basic eligibility determination for the UI program. When an initial claim is filed with a state, certain programmatic activities take place that result in activity counts that include the initial claims count. the count of
B. Continuous Weeks Claimed
A person who has already filed an initial claim and experienced a week of unemployment then files a continuing claim to claim benefits for that week of unemployment. Weekly continuing claims are also called insured unemployment, since continuing claims reflect a good approximation of the current number of insured unemployed workers claiming UI benefits. the count of
C. Seasonal adjustments and annual reviews
Over the course of a year, weekly changes in initial and continuing claim levels experience regular fluctuations. These fluctuations may be the result of seasonal changes in weather, major holidays, the opening and closing of schools, or other similar events. Because these seasonal events follow a more or less regular pattern each year, their influence on the level of a series can be attenuated by adjusting for regular seasonal variation. These settings make it easy to spot trends and cyclical developments. At the beginning of each calendar year, the
2017_2022_seasonal_factors.txt
2017_2022_seasonal_factors.xlsx