Good marginal revolution posts for today

Ahh I see two Tyler Cowen posts up in the past 24 hours that I have to list down for future reference:

  1. On the jump in bond rates as the Fed suggested a tapering in QE was in sight.
  2. On the differences of views between the economics community and economics blogs.

I would note a couple of things.

The term structure of interest rates are always confusing – and hard to interpret without reference to other variables at the same time.  The drop in asset and commodity prices at the same time as the drop in bond prices indicates “tighter monetary policy” (I prefer avoiding the bubble line – as the word is a bit loaded, and a ‘bubble’ based on cheap credit is different than a ‘bubble’ based on out of whack expectations … in fact I wouldn’t even use the term in the first case) – the real question of interest for me is “what were expectations of Fed tapering prior to the announcement”?  This seems like a strange reaction for an announcement that in many ways should have been expected!  [Add this from Money Illusion, and all the links within – the simultaneous events in the US and China make this a messy thing to read indeed]

And in terms of blogs, Cowen is right that economists are generally less overconfident and moralistic in their research than they are on blogs.  Economics research is neat to read, and is unlikely to get you hot under the collar in the same way blogs do 😉 .  Now this is the difference between writing as an economic researcher, and writing as an individual, so it should really be expected 😉

Self analysis through exhaustive data gathering

When tech companies were torturing their interviewees with questions like ‘why are manholes round?’ there was much fawning over the way they got people to think on their feet. Now Google’s HR boss says that those questions were all a waste of time:

brainteasers are a complete waste of time. How many golf balls can you fit into an airplane? How many gas stations in Manhattan? A complete waste of time. They don’t predict anything. They serve primarily to make the interviewer feel smart.

Instead, what works well are structured behavioral interviews, where you have a consistent rubric for how you assess people, rather than having each interviewer just make stuff up.

Legions of HR professionals will probably roll their eyes and nod with smug satisfaction as Google figures out what they knew already. But what I find really impressive about this interview is the way it emphasises Google’s quest to improve itself. It tried numerous interviewing techniques, tracked the successful candidates, and then analysed the data to figure out what worked. Most of all, it isn’t afraid to acknowledge that the techniques for which it became notorious were wrong!

New blog: Productivity commission

I had heard a rumor the Productivity Commission was going to make a blog – and what do you know here it is … Prod Blog (link fixed)!

They are talking here about migration to Australia.

Contrary to popular belief, those leaving for Australia aren’t necessarily our best and brightest. Rather, their education profile broadly matches that of the New Zealand population as a whole. Also, inward migrants, who bring new skills and experience to New Zealand, generally out-number those leaving New Zealand – prompting some to refer to our migration pattern as a brain exchange rather than a brain drain.

Posts I like today

Here are some posts I like, that I want to be in a blog post so I can find them later 🙂

And in case I forget, my opinion is that I agree with these posts.  If I come back later and I don’t think I agree with them anymore, then my view on something has changed and I should figure out why 😉

Cutting jobs at DOC and charging tourists more to walk tracks are separate issues

Duncan Garner has posed the question of whether we should charge tourists more to use DOC trails to save the 100 Kiwi jobs the government is cutting at DOC

Now this conflates two separate issues:

  • If it is efficient to price discriminate and charge tourists more to use DOC tracks, why aren’t we doing it already?
  • Are the jobs necessary to provide the desired level of service from DOC?

Charging tourists more

The first issue implies that the government is leaving money on the table. If it is, then maybe this should be looked at. There may however be valid reasons why the government hasn’t. A basic requirement for price discrimination is that arbitrage isn’t possible. It’s entirely possible that if this pricing structure was implemented people would just get around as locals would find ways to buy tickets (or whatever one does when they book a tramp on a doc track) and pass them onto foreigners at a profit. I don’t know about you but I personally feel a little uncomfortable with the idea of DOC staff checking passports on the trails. It’s also possible that tourists would resent the price discrimination and be put off, which would have the opposite effect.

But, if the reasons to not do it don’t stack up (i.e. it would be profitable), the government should be doing it independent of whether or not it cuts 140 jobs….

Trimming the fat at DOC

The second issue is whether it was efficient for these people to be employed at DOC. I.e. Is DOC “carrying too much fat”/would we be better off with these people serving some other role in the economy? This leads on the next question of analysing whether the social costs of firing them (unemployment/retraining etc..) outweigh any efficiency benefit.

And that is something which I can’t personally answer due to a lack of information. But I would note that if there is an issue of the structure of the hierarchy leading to “too many chiefs”, cutting staff isn’t really going to have much of an impact on service – and it should be taken into account. If this is the factual situation we are in, then the government keeping them employed is a form of welfare, which should be taken into account when analysing the social costs of firing them.

Since it is Valentine’s day

It is worth linking to this important point.

If it doesn’t hurt, you aren’t signalling.

Which reminds me about the advice we gave about gift picks last year!

In this sense the gift means more than just the sheer value of the present itself – it also provides information and signalling value that is used to shape the relationship for at least the next year.  The significant increase in breakups post-valentine’s day may in fact be a signal that sometimes individuals are not able/willing to do this to a sufficient degree.

So just remember as you pass over your gift today, that it will be seen as a signal of the relative value you place on matters inside your relationship that are not explicitly contracted – and if you get in trouble, I’m sure a good excuse would be to explain how they are misinterpreting this signal …

For me this is still key advice …