Thousands of keyboards were likely drenched four days ago as coffee spewed from thousands of nostrils upon reading the headlines that President Trump fired the head of the Bureau of Labor Statistics because he (the prez) didn’t like the July 2025 job numbers that were reported. Apparently, the job stats were not as great as we had been led to expect for the new regime of tariffs and deportations. (Someone should inform the politicians that businessmen need predictability for making any expansionary plans). So, shoot the messenger, that will fix it.

The First Ire was apparently kindled especially by the truly massive downward revisions to the May (-125,000) and June (-133,000) job figures, which reduced the combined employment gain for those months by 258,000. That made for three anemic employment months in a row, which is a different picture that had been earlier portrayed. For those unfamiliar with past BLS reports, that could seem like manipulation or gross incompetence. For instance, whitehouse.gov published an article titled, “BLS Has Lengthy History of Inaccuracies, Incompetence”, excoriating the “Biden-appointed”, now-fired Erika McEntarfer who “consistently published overly optimistic jobs numbers — only for those numbers to be quietly revised later.”

But massive overestimations of jobs creation, followed a month or two or three later by massive downward revisions are pretty standard procedure for the BLS in recent years. Fellow blogger Jeremy Horpedahl has noted prior occurrences of this, e.g. here and here. There is no reason to suspect nefarious motives, though. The understaffed and overworked folks at BLS seem to be doing the best they can. It is just a fact that some key data simply is not available as early as other data. There are also rational adjustments, e.g. seasonal trends, that must first be estimated, and only later get revised.

Bloomberg explains some of the fine points of the recent revisions:

The downward revision to the prior two months was largely a result of seasonal adjustment for state and local government education, BLS said in earlier comments to Bloomberg. Those sectors substantially boosted June employment only to be largely revised away a month later.

But economists say the revisions also point to a more concerning, underlying issue of low response rates.

BLS surveys firms in the payrolls survey over the course of three months, gaining a more complete picture as more businesses respond. But a smaller share of firms are responding to the first poll. Initial collection rates have repeatedly slid below 60% in recent months — down from the roughly 70% or more that was the norm before the pandemic.

In addition to the rolling revisions to payrolls that BLS does, there’s also a larger annual revision that comes out each February to benchmark the figures to a more accurate, but less timely data source. BLS puts out a preliminary estimate of what that revision will be a few months in advance, and last year [2024], that projection was the largest since 2009.

Perhaps it would be wise for the BLS to hang a big “preliminary” label on any of the earlier results they publish, to minimize the howls when the big revisions hit later. Or perhaps some improvements could be made in pre-adjusting the adjustments, since revisions there do seem to swing things around outrageously. I expect forthcoming BLS reports to be the subject of derision from all sides. We all know which parties will scoff if the job report looks great or if it looks not great. Presumably the interim head of the Bureau, William Wiatrowski, is busy polishing his resume.

And POTUS should be careful what he wishes for – “great” job growth numbers would, ironically, strengthen the case for the Fed to delay the interest rate cuts he so desires.