August 5, 2025
Seasonal adjustments are easy to manipulate in job numbers
By Jack Hellner
In the September 2024 jobs report from the Department of Labor, the seasonal adjustment was the largest on record. They had a seasonal adjustment of 460,000 which gave them a chance to claim that 254,000 jobs were created:
US Job Growth Surges on the Strongest Seasonal Adjustment Effect on Record
September 2024 had the biggest seasonal adjustment factor on record compared to like months of September in history (chart 1). I had expected a strong seasonal adjustment factor to be a turning point in favour of a strong gain in jobs, but not this strong! Chart 2 shows why this mattered. The 460k gain in seasonally unadjusted nonfarm payrolls last month (red bar) translated into a seasonally adjusted gain of 254k.
The report happened to be the last one before the 2024 election. That does not look like a coincidence. It looks like the rigging of the numbers or cooking the books.
Besides monthly negative adjustments on job numbers that are rarely amplified, the BLS made a huge 818,000 negative adjustment in August 2024 for the period April 2023 to March 2024.
How much inaccuracy would it take for the media to think someone should ever be fired from the government if that person were appointed by a Democrat?
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https://www.americanthinker.com/blog/2025/08/seasonal_adjustments_are_easy_to_manipulate_in_job_numbers.html