was as taken aback by Friday's Non-Farm Payroll
number as anyone. But I was curious as to how this
huge number could be such a surprising outlier,
given all the wekaness we have been seeing. Then,
I dug beneath the headlines a bit, and discovered
this small little hedonic adjustment to the NFP
data: The CES Net Birth/Death Model. BLS notes
There is an unavoidable lag between an
establishment opening for business and its
appearing on the sample frame and being available
for sampling. Because new firm births generate a
portion of employment growth each month, non-
sampling methods must be used to estimate this
growth. In other words, they estimate the number
of jobs created by new firms which the BLS has yet
to sample. Now, I have no idea how accurate or
reliable this adjustment actually is. But out of
Friday's headline NFP data of 274k new jobs, there
was a hedonic adjustment of +257k Birth/Death.
In other words, of the reported gains, 93.8% of
the data is ana rtifice -- an hedonically adjusted
estimate. Note that the Birth/Death adj. is a
relatively new process, first introduced by the
BLS in 2000