The economic models that BLS uses are not foolproof.
Sometimes new data comes in that makes the economists at BLS realize they have
significantly overestimated or underestimated the growth an occupation can
expect. The outlook may change for many reasons, such as new developments in
technology, international trade, consumer tastes, or the formulas Medicare uses
in reimbursing health-care providers. For an understanding of what may have
changed, I find it useful to look at the “Job Outlook” section text of the OOH statement (article) about an
occupation, comparing the wording in the previous edition to the wording that
appears there now. (You can make the same comparisons by looking at the
previous OOH edition stored in the Wayback
Machine site.) But often it’s hard to find a good explanation of what
accounts for the revised forecast.
A useful example is Wind Turbine Technicians. This is the
occupation with the greatest increase in its projected growth: from a
formidable 24 percent growth projected for 2012–2022 to an amazing 108 percent
projected for 2014–2024. However, the OOH
outlook wording has changed very little between the previous edition’s
statement and the current edition’s. The major difference is that only the
previous edition has this wording: “In addition, the Renewable Electricity
Standard calls for 25 percent of U.S. electric power generation to come from
renewable sources by 2025, which should further drive employment growth.”
Although the new edition doesn’t mention the Renewable Electricity Standard,
presumably this commitment is continuing to drive growth, but it’s interesting
to note that the number of states with this standard in place has not increased
over the past three years—both then and now, it came to 29 states, the District
of Columbia, and two U.S. territories. A change that may be more relevant to
the revised forecast appears in the wording regarding offshore wind turbines.
The current edition lacks a cautionary sentence that appears in the previous
edition: “However, the high cost of building wind towers in the ocean may
inhibit new offshore projects from being approved.” Still, I wonder whether the
cost of building offshore turbines has fallen enough to make this sentence no
longer necessary.
I don’t want to make too much of this apparent disconnect
between the greatly changed numbers and the mostly unchanged prose. The outlook
section notes that this is a very small occupation (in fact, employing only
4,400 workers in 2014), so the sextupling of projected new job openings, from
800 to 4,800, still does not represent a large number of new opportunities.
Something similar seems to have happened with another small
occupation, Forensic Science Technicians. In the past two years, its ten-year
job-growth projection has soared upward from 6 percent to 27 percent. However,
the OOH outlook section has changed
little from the previous edition. In fact, the main difference is that only the
latest edition offers this advisory sentence: “Larger police departments will
be more able to staff full-time forensic science technicians, but they, too,
may face budget constraints.” Again, both editions note that this is a very
small occupation (with 14,400 workers in 2014), so relatively small changes in
the economy can cause a large change in outlook without actually creating a
comparably large number of new jobs.
Not all the occupations with greatly changed forecasts were
those with small workforces. For example, Personal Care Aides (1.8 million
workers) had its growth projection cut almost by half: from 49 percent to 26
percent. Yet, again, the text of the OOH
outlook section shows almost no revision, except for the removal of the word “companionship”
(as one of the functions of the occupation) in two places and the removal of
this paragraph: “Clients often prefer to be cared for in their own homes,
rather than a home care facility or hospital. Studies have found that home
treatment is frequently more effective than care in a nursing home or hospital.”
Another large occupation with a big change in forecast is Market
Research Analysts, which was projected to grow by 32 percent for 2012–2022 but
only by 19 percent for 2014–2024. In the wording of the OOH outlook section, there is one hint of a reason for this change.
The following sentence was cut from the current OOH: “Rapid employment growth in most industries means good job
opportunities should be available.” This deletion reflects the overall downward
forecast for job growth: The projection for all occupations changed from 10.8
percent to 6.5 percent. I compared the old projections with the new ones and
found a mean (unweighted) change of -5.5 percentage points.
Nevertheless, for occupations that had greatly changed
forecasts, I would appreciate a better indication in the OOH outlook section of what factors have changed expectations.
Here is a list of the 20 OOH
occupations that had the greatest revisions (either upward or downward) in their
projections for job growth.
Occupation
|
Projection for
Job Growth
(Percent)
|
|
2012–
2022
|
2014–
2024
|
|
Wind Turbine Technicians
|
24.5
|
108
|
Diagnostic Medical Sonographers
and Cardiovascular Technologists
and Technicians, Including Vascular
Technologists
|
38.8
|
0.2
|
Market Research Analysts
|
31.6
|
0.2
|
Nurse Anesthetists, Nurse Midwives,
and Nurse Practitioners
|
31.4
|
0.3
|
Geographers
|
29
|
-1.6
|
Mental Health Counselors and
Marriage and Family Therapists
|
29.1
|
0.2
|
Skincare Specialists
|
39.8
|
12.1
|
Insulation Workers
|
37.6
|
13.3
|
Medical Equipment Repairers
|
30.3
|
6.1
|
Political Scientists
|
21.3
|
-2.3
|
Meeting, Convention, and Event Planners
|
33.2
|
9.9
|
Personal Care Aides
|
48.8
|
25.9
|
Software Developers
|
21.9
|
0.2
|
Health Educators and Community
Health Workers
|
21.5
|
0.1
|
Surveying and Mapping Technicians
|
13.5
|
-7.6
|
Radiologic and MRI Technologists
|
21.2
|
0.1
|
Pest Control Workers
|
19.7
|
-1.2
|
Forensic Science Technicians
|
5.8
|
26.6
|
Nursing Assistants and Orderlies
|
20.9
|
0.2
|
Bill and Account Collectors
|
14.7
|
-5.6
|