No, Public Sector Jobs Do Not Crowd Out Private Sector Ones

June 10th, 2013 at 8:05 am

I don’t mean to shoot everything that moves, but I thought I owed this post to Larry and Brian.

That is, I was on Larry Kudlow’s radio show the other day along with Brian Westbury and the two of them asserted that government job growth crowded out private sector jobs.  We were discussing last Friday’s jobs numbers and I pointed to evidence of the sequester on federal government jobs–they’re down 45,000 since the cuts took effect in March.  They argued this was probably a good thing because it would mean more private sector jobs.

At which point I went all empirical and recalled running some simple analysis of this assertion, which thoroughly refuted it.

I update that here, using a simple statistical model called VAR* which estimates how one variable moves when you nudge another variable that’s related to it.  In this case, I look at the impact of private employment when you increase government employment.  The figure shows the result.

If Larry and Brian were right re government jobs crowding out private sector jobs, when you “shock”—i.e., increase the former’s growth—you should see private sector jobs head south.   The middle line is private jobs, the two lines on either side of it are standard errors.  The fact that the middle line basically hugs zero means no job crowd out and the standard error lines tell you that even what little movements you see are far from statistically significant.

Conservatives are always going on about crowd out—government borrowing crowding out private borrowing is the most common claim—and I’m not saying it’s impossible or never happens.  I am saying it’s really hard to find in the data and I’d therefore be extremely wary of those who claim it’s a big deal.

PRIVATE SECTOR JOB GROWTH WHEN YOU SHOCK PUBLIC SECTOR JOB GROWTH

pvt_govt2

 

*VAR stands for vector-auto-regression, and it’s just a model that in this case runs the log changes in private and government jobs against each other and then asks how one moves when you shock the other.  In this case, I ran the VAR on quarterly data from 1959q1-2013q1, using four lags for the jobs variables and controlling for the log change in real GDP and dummies for recessions.

VARs are related to Granger Causality tests.  If you run one of those for these variables, again using four lags, you get this result.  It suggest a weak relationship between private sector growth and public sector growth–that would be “crowd in”–but nothing going the other way, i.e., no evidence that government job growth “Granger causes” private sector job growth (you cannot reject the null hypothesis which says there’s no causality–confusing, I know, but there it is):

pvt_govt3

 

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7 comments in reply to "No, Public Sector Jobs Do Not Crowd Out Private Sector Ones"

  1. foosion says:

    Why don’t arguments that the government crowds out also mean that the private sector crowds out? If the government crowding out argument is correct, wouldn’t one private sector job crowd out another, private sector borrowing crowd out other private sector borrowing, etc.?

    These arguments appear to rely on the notion that the economy is fixed or that resources can’t recirculate. Ultimately, if these arguments are correct, growth would be impossible, as every action crowded out others.


  2. D. C. Sessions says:

    What would that “crowding out” mechanism be? The only possible mechanism that comes to mind is the usual one: price of labor, the same one that causes private sector jobs to crowd out other private sector jobs.

    For instance, public hiring of prison guards crowds out private hiring of schoolteachers by raising the cost of burger flippers.


    • jonas says:

      If you press these people hard enough, the claim you’re likely to hear is that ‘job creators’ are reacting to some sort of fear of creeping socialism by not hiring.

      This, of course, is often their answer for any policy initiative.


  3. save_the_rustbelt says:

    Arguing with Kudlow and Westbury is like arguing with my black lab.

    He is always certain he is winning and he never changes his mind. 🙂

    Woof.


    • Jared Bernstein says:

      Sounds a lot like arguing with my cats about why they shouldn’t keep walking over my keyboard while I’m typing. They’re like, “whatever…” [walk, walk, walk…]


  4. Jonas says:

    Mr Bernstein-
    What series were you modeling here? Forgive me if I missed it in the post.

    Jonas.


    • Jared Bernstein says:

      Nonfarm payrolls from BLS: private sector and gov’t jobs. Real GDP from BEA. Quarterly dummies for recessions.


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