Selected Questions From Tyler Cowen’s 2005 Macro Final

Note: I’m working through Tyler’s 2005 Macro final. 

3. How will the aging baby boom generation affect the following and why? Savings rates, interest rates (real, nominal, short and long term), Fed policy, inflation, and investment.

We’re going to become (ARE!) a savings-driven society. That means zero tolerance for inflation with all the painful adjustments implicit in changing inflation regimes. And don’t expect the fed to push extra-hard against this political force to keep its 2% implicit target. Ouch.

Increasing dependency ratios are going to drag the economy a bit, which means a lower demand for loans to complement the increased supply.  I’m sure that the elderly will limit consumption to conserve savings even further than we might expect them to.

Demand is a big problem in an old society.  Nice little throwaway comment there, but what does it mean? It means that the marginal consumer wants to spend less than last year but also does not want to invest the savings of others in novel or innovative productive activities. Leisure is good for your own kids, but not for every one else’s kids. Steve Jobs’ kids knew their old man less than he would have liked but we’re all better off for it.

More downward pressure on inflation. Who wants to invest in this environment? Trick question: more people than ever (savings are up and S = I!). But they want to keep their savings at home, not spread them around the world looking for opportunities!

Selected Questions From Tyler Cowen’s 2005 Macro Final

Note: I’m working through Tyler’s 2005 Macro final. You’d be out of your mind to take a formal economics class in this blogosphere.

2. What is the difference between covered and uncovered interest parity? Which are assumed by the traditional Dornbusch model of exchange rate overshooting? None, just one, or both? How do the observed failures of the expectations theory of the term structure affect the Dornbusch model?

Covered parity means you have a forward contract guaranteeing you your money back. Uncovered parity means you’re exposed to exchange rate fluctuations not offset by interest rate changes.

I had to look up Dornbusch, but I remember his ideas from the CFA exams. The point here is that the economy adjusts to shocks in a lumpy way as information is processed by affected sectors and knock-on effects are realized.

Anyway, the point is that interest rates change based on local equilibria which themselves might be based on asset prices that adjust only slowly to shocks. Think about how long it takes house prices to adjust to changes in interest rates. The full expression of the shock might take a longer and more meandering path than we expect.

Not sure what failures in the term structure Tyler’s talking about here but a wonky term structure would mean that different rates within asset classes will react in different ways.  This just seems to make rates even less predictable. I wouldn’t want to be in charge of that model.

And when the changes, when they come, come fast. Consider how this affects the information transmission of price systems. Tyler himself recently quoted James Hamilton that the market will change its view quickly (on Italian debt, for instance) when perception switches to ruin.

Okaaaay, But

This was an interesting take:

The WSJ has a very interesting table of the unemployment and wage distributions for various majors. There’s lots to talk about, particularly the STEM/humanities/social/vocational divide, but one thing that struck me was that the highest and lowest unemployment rates were dominated by tiny majors. In general, small populations tend to have more widely varying outcomes just as a function of standard error, which is why you should always ignore headlines about big jumps in the crime rate for small towns. Anyway, I downloaded the data, generated some plots, and yup, it’s your classic funnel.

He then throws in some graphs:

By Rank Order
The Funnel!

His conclusion

Moral of the story, don’t change your major from clinical psych to actuarial science just yet. On the other hand, nursing, elementary education, and general education really do appear to be real deal outliers of low unemployment.

Putting aside how impressed I was with this analysis and how jealous I was that I didn’t think of it first, my gut said this wasn’t the last word.

I took the data and changed the y axis from employment to median income:

And 75h percentile income:

I’ve circled two very different kind of outliers in my analysis. My little circle surrounds three majors in both images. They are:

  • Elementary Education
  • General Education
  • Psychology

Low unemployment isn’t everything.

But They Teach, Too

I’m not here to comment on Krugman’s main point in this post, which is that there isn’t any substance to the idea that high income earners contribute something called “job creation” to the economy. But I do take issue with this:

Yet textbook economics says that in a competitive economy, the contribution any individual (or for that matter any factor of production) makes to the economy at the margin is what that individual earns — period.

As someone who often works with extremely productive people I have to respectfully disagree. They teach me when they work with me. They might make me more productive directly and so earn their higher wages, but they make me more productive IN THE FUTURE, whether they stick around or not.

And the longer they stick around, the more productive I will ultimately become.

Model that!

Great Quotes

Robin Hanson:

Like democracy fans who insist the only acceptable solution to democracy’s failings is more democracy, for many school fans the only acceptable solution to school failings is more school.

A variant on this is Arnold Kling‘s:

The other camp argues, “Markets fail, and that’s why we need government.” The idea is that markets are prone to excesses and imbalances and need the thoughtful, steadying hand of government to protect consumers and investors from flaws and uncertainties of the market. This camp believes that wise technocrats can and will bring order to the markets.

Markets fail; but they learn from their failures. That’s why we need markets.

 

Irony

I briefly overheard an impassioned case for increasing the minimum wage on some morning news program today. The reason? “Rent is too high to pay on $7.25 an hour”

Indeed, rent is high in this city. I can’t imagine earning the min and making ends meet, certainly not in Manhattan, and certainly not in a nice neighborhood without a bunch of roommates.

But read Ryan Avent’s minibook (or listen to an interview with him) and think about this a bit.

High house prices are much a product of regulation designed to limit urban development. Incumbent house-owners lobby to enhance zoning laws and other regulations that stifle development to constrict supply. Now why would you want to constrict supply of something you own?

So the price goes up.

It’s policies that favor the rich that supply the strongest case for increasing the minimum wage.

Selected Questions From Tyler Cowen’s 2005 Macro Final

Note: I’m blogging through Tyler’s 2005 Macro final. I’m not really imagining that these answers are ‘right’ in the exam sense, but rather just an excuse to think about 2005 questions in 2011.

1. The pessimists commonly argue that the large U.S. trade and budget deficits eventually will require a big fall in the dollar, higher real interest rates, and a general loss of confidence in dollar-denominated assets. We all know that g > r would stop this problem in its tracks. But let us say that g is not big enough relative to r. What other non-pessimistic scenarios can you outline? How valid are they?

I think that g and r are growth interest rates.

I’ll take the question generally as asking for non-pessimistic scenarios on trade and budget deficits in the future.

Not sure if its non-pessimistic, but the twin deficits persist to this day, mostly because investors are terrified of any investment other than treasuries. Flight to safety preserves the purchasing power of the currency of account.

Less pessimistically, of course, trade deficits due to investment can persist for as long as there are investment booms elsewhere.

And let’s not forget that those trade deficits are nice while we have them. I like the way Russ Roberts thinks of the extremis scenario of exchange rate ‘over/under-valuation. He says that if some foreign country wants to give us a bunch of free cars (be it from exchange rate ‘misalignment’ or enormous foreign productivity matters not), they’re going to of course undermine our domestic auto industry. But (now think carefully about this for a sec) we’re getting free friggen cars!

But to the degree that these foreign investment booms prove illusory, we get a debt overhang and disinflationary recession. But there I go being pessimistic again. Michael Pettis has convinced me that the end-game in China is going to be an abrupt and far-too-late end to their government sponsored investment boom. Ew.

There are also some insights in Tyler’s question, which actually isn’t so pessimistic. What we wouldn’t give for a bit of inflation, depreciation and the ensuing loss of confidence today!

Ax Grinding Article of the Year [political personality test]

Interesting article on a tenured professor struggling financially.

What’s interesting to me about it is just that I can see how this article would quicken the political pulse of just about everyone that reads it. There’s so much material! I’m almost suspicious of it being some kind of hoax designed to drive the entire political spectrum insane with fury.

I’ll briefly mention and skip the irony of a religion professor as a single mother raising her kid alone and messing around with bad boys who lie and cheat (sorry, couldn’t resist).

I’ll try again: her stated complaint in the article is that the brewing attack on the welfare state would be catastrophic to her counter-factual life (ie she’d have had to get a job with which she would be able to pay the bills).

But she isn’t an unbiased observer, folks. She works for a private university in a field where the median wage is probably set by public institutions, who have been giving it (in a bad way) to teachers for a while now:

Overall, if we exclude for-profit schools, which were a tiny part of the landscape in 1999, we have seen tuition fees rise by 32% between 1999 and 2009. Over the same period, instruction costs rose just 5.6% — the lowest rate of inflation of any of the components of education services. (“Student services costs” and “operations and maintenance costs” saw the greatest inflation, at 15.2% and 18.1% respectively, but even that is only half the rate that tuition increased.)

The real reason why tuition has been rising so much has nothing to do with Baumol, and everything to do with the government. Page 31 of the report is quite clear: “except for private research institutions,” it says, “tuitions were increasing almost exclusively to replace losses from state revenues or other private revenue sources.”

In other words, tuition costs are going up just because state subsidies are going down. Every time there’s a state fiscal crisis, subsidies get cut; once cut, they never get reinstated. And so the proportion of the cost of college which is borne by the student has been rising steadily for decades.

Her skills aren’t worth much and her job is to teach other people those same skills. For 35 Gs plus room and board?

Yeah friggen’ right.

To The Dedicated: Success

Jason Freedman:

So, the 42Floors crew talked this over and we all agreed that we wanted to go to the mats.  We’re moving out of our respective apartments.  We’re all switching to a Maker’s Schedule.  We rented a house in Redwood City for 5 months for all of us to live in and work out of.

We can’t fucking wait.  While it’ll be hard work and the intensity will get to us at times, we also know what makes going to the mats so special.  It’s really an opportunity to perform at our absolute highest levels.  When’s the last time you’ve done your best work?  How many times in your life have you worked at peak capacity?  How many hours a day are you really productive?  This will be the most productive time in our lives.  It’s pretty cool.

How many mortals can endure such a schedule? But anything less and you’ve got a lifestyle business, not an ambition business.