Category: Economics

Underappreciated economists, a new installment

Brian Loasby.  He has been a Professor of Economics at the University of Stirling, now emeritus.

I read Loasby’s Choice, Complexity, and Ignorance (alas, not to be found in Loasby’s Amazon list) at a very young age.  Here was an "Austrian" theory of choice and the firm that was both dynamic and had empirical content.  Who else started with Marshall and Joan Robinson but integrated Lachmann, Cyert and March, and the best of institutionalist thought, all without falling in dogma?  Loasby also embodied the kaleidic best of G.L.S. Shackle without flying off the rails into analytic nihilism.  If you want a phenomenological description of how firms deal with radical uncertainties about the future, this is the place to go.

Here is an interview with Brian Loasby.  Here is one nice bit, intended as a general point but also in defense of Marshallian reasoning:

I have never been able to question very much at a time, I think.  I got a note somewhere of something that G.K. Chesterton once said, that a man must be orthodox on most things, or he will never have time able to practice his own particular heresy.

Paying for Kidneys

In a new paper, Gary Becker and graduate student Julio Elias estimate that for a price of $15,000 the shortage of kidneys could be eliminated from live donors.  The risk of death to a live donor is no more than 1 in a 1000.  Combine this with a value of life estimate of $3 million and add in some costs for time off work and so forth and you get the Becker/Elias figure of $15,000.

$15,000 seems too low to me but it probably would since my income is above average. As a robustness check, the authors note that in India a kidney can be had for about $1000 and US per capita income is about 15 times that in India so $15,000 looks to be in the right ballpark.  A similar calculation from Iran, where kidney sales are legal, is also consistent.  In anycase, even if they are off by a factor of 2 the point is well taken that for a modest sum many lives could be saved.  (In fact, dollars would be saved also because transplants are cheaper than dialysis.)

Becker and Elias have a useful response to (so-called) moral objections. Take any argument against kidney sales and apply it to the volunteer army.  Do kidney sales "commodify the body?"  Perhaps, but then the volunteer army commodifies life.  Would kidney sales eliminate altruistic donation?  As the example of Pat Tillman and many others demonstrate people still volunteer for the military for non-monetary reasons.  Are there difficulties for donors to calculate risks?  Again, perhaps, but these also apply to joining the military (and if so we could allow for a cooling-off period for both donating an organ or joining the military, as we do in some states for auto purchases).

If you are not in favor of the volunteer army then Becker and Elias don’t have any knock down arguments but I suspect that many people who are against kidney sales also favor the volunteer army and for these people Becker and Elias are posing a consistency challenge.

Markets in Everything – law school

Jay Wilson, a second-year law student at New York University, was
desperate to register for a popular course in constitutional law.

Unfortunately for him, the course, taught by the youthful Daryl
Levinson, was completely booked for the upcoming spring semester.
Fortunately, Mr. Wilson had some money to spare. In a posting on an
online bulletin board at the law school, Mr. Wilson offered $300 to any
student willing to drop the course to make room for him…

Students interviewed at the law school said the practice of
exchanging course spots is common at the school. As a kind gesture,
some cash-strapped students have promised to bake cookies for willing
traders or pass them invitations to exclusive parties.

Mr. Wilson, they said, took things to a new level: a no-nonsense
business deal, the sort of financial transaction that they expect to
deal with only after graduation.

Of course, the authorities soon moved to quash such deals.  The dean, however, did not explain why paying to get into a class is wrong but paying to get into law school is good.  Hmmm….perhaps Mr. Wilson would have had better luck had he offered to pay the dean rather than another student.

I have pioneered this approach even further.  Students in my classes have been known to offer payment to get out. 🙂

Thanks to Ray Lehmann for the link.

Jail Mail

I edited a book, Changing the Guard, on private prisons and crime control.  Last week I received an interesting letter from an expert in the field….a prisoner in Tennessee.  Frankly, I was expecting a crank but in fact the prisoner, who shall remain anonymous, had a lot of intelligent things to say about how the prison system operates.  Here is one observation:

A privately owned and publicly traded company like CCA has no incentive to rehabilitate criminals.  It is in the best interests of the company for even more criminals to exist.  Unfortunately, the same is true of government run prisons.  And contrary to what you may have been told, prisoners are not paroled because they have indicated by their actions or behaviors while inside that they are less likely to reoffend; they are let go because the Parole Boards believe that will commit another crime.  This way the prison lobbyists can then "prove" that parole doesn’t work.  The Department of Corrections gets less money from paroled prisoners than it does for those kept inside.  And also, "good" inmates are less trouble (less labor) than the trouble-makers, and so trouble-makers get released.

Good analysis.  I hope, however, that he does not test his theory on how to gain early release.

Rock, paper, scissors — no longer just a game

The rules are simple: Two players count "1…2…3…Go!" and then offer up their hand in one of three ways: rock (clenched fist), paper (open, flat hand), or scissors (forefinger and middle finger form a ‘V’).  The winner is decided according to the rules that rock blunts scissors (rock wins), scissors cut paper (scissors win), and paper covers rock (paper wins).  If the weapons are the same, then the game is a tie.

Given the intransitive rankings, a player should try to feign randomness; a predictable strategy is beaten.  Appearing more random than your opponent is in fact the only dimension of competition.  Apparently many find this thrilling or at least humorous:

Rock Paper Scissors is evolving into something else entirely: a genuine, bona fide, almost legitimate sport…
    The World Rock Paper Scissors (RPS) Society – yep, there’s one of those, too – boasts 2,200 members. The winner of this year’s world championship was honored with a parade at Disney World. Simon & Schuster recently published an official strategy guide.
    "I can think of five bars in the Dupont [Circle] area where you can find a money game, $1 to $20," Mr. Simmons says. "It’s the equivalent of pickup basketball."
    Tonight [Friday], Fox Sports Net’s "Best Damn Sports Show Period" will feature an extended segment on October’s world championships, held in Toronto. A British-made RPS documentary film is due in January.

Read this account of gambit strategies; here are gambits in more depth, written by the reigning world champion, Master Roshambollah.  Here are some faking strategies.

Style often corresponds to personality:

Paper is subtle, the choice of intellectual, passive-aggressive types. Scissors are devious, a tool of controlled malice. Rock is between-the-eyes intimidation, preferred by beginners and players who have been backed into a corner.
    "People fall into patterns," Mr. Simmons [also known as Master R] said. "From my personal experience, women tend to open with scissors. There are some other tells I don’t want to go into. But I can see things in the shoulders and the forearm."

Here is the full story.  Here is the world championship web site, which offers T-shirts and books, and of course the exact rules.  Here is the on-line magazine.  Here is an essay on how to coach the game.  The game also has applications in evolutionary biology.

The bottom line: The game is interesting precisely because it is so difficult to be (or appear) random in critical moments.  And being random universally only brings you to the middle of the pack.  On the computational dimension of randomness, read this article.

Cowen and DeLong on what makes for a good Treasury Secretary

Econoblog returns, courtesy of The Wall Street Journal, and again no subscription required.  Brad DeLong and I discuss what makes for a good Treasury Secretary, how John Snow will fare, and our current fiscal position.

What I would like to see (I am not sure whether WSJ is the appropriate forum) is a comparable yet longer dialogue on areas of major political and economic disagreement.  One contributor starts with a post on why he thinks he disagreees with the other, in the most general terms, and the other responds.  To how many or how few dimensions can we reduce extant political disagreements?  When it concerns Brad and me, I will predict that the number is four: assumptions about feasibility/willingness to be utopian, the scope of cosmopolitan obligations across borders (I don’t count Americans for more), how likely is benevolent government (not very), and the choice of social discount rate (I think it should be low, implying growth-maximizing policies at the expense of some social spending).  You might recall this earlier exchange.

Soft landing or economic Armageddon?

Stephen Roach comes around to a more optimistic point of view

The constructive developments should not be minimized.  The recent plunge in oil prices is nothing short of stunning — 13% alone, for WTI quotes in the first three trading days of December.  I have no idea if this move is sustainable, but it has opened up a $7.50 gap from the $50 threshold that I have long felt would pose great risks to the global economy.  Moreover, the dollar’s weakness — despite the angst of the headline writers — fits the rebalancing script to a tee.  While euro and yen cross-rates are raising discomfort levels in Frankfurt and Tokyo, the dollar’s descent still looks like a well-managed soft landing to me.  In real terms, the Federal Reserve’s broad trade-weighted dollar index is down 15% from Febryary 2002 through November 2004 — a pace that equates to a decline of about 5% per year.  That’s a measured and encouraging adjustment path — provided, of course, the burden of currency realignment now spreads from Europe to Asia, including China. 

Furthermore the Chinese economy appears to be slowing in the appropriate, non-implosive fashion.  Roach’s bottom line?    

Even I have to concede that a number of positives have fallen into place recently.  I am on record of assigning a 40% probability to a global recession scenario in 2005…However, given recent favorable shifts in oil, the dollar, and China, I now believe that it is appropriate to reduce this risk to 25%.   

Note, however, that in his view (and mine) the U.S. still remains on a dangerous consumption binge when for demographic reasons more saving would be in order.  In my view the big problem lies in the long run, not the short run.  Now asset markets have a remarkable ability to compress long run problems into the here and now.  But how will this play out?  Most likely U.S. taxes in twenty or thirty years time will be much higher than today. Yes this will depress current asset prices but it should not, on its own, imply a current implosion or crash. Here is my previous post on economic Armageddon.

Are seasonal business cycles effcient?

A disproportionate percentage of economic activity — both production and consumption — comes in the fourth quarter as Christmas approaches.  Similar trends occur in other economies with major gift-giving holidays.  Yet most economic models imply benefits to smoother production and consumption.  In fact seasonal business cycles look a great deal like regular business cycles.  Major economic variables such as employment, production, and sales move in similar ways across the two kinds of cycles.  Yet we typically disapprove of regular business cycles.  So does it make sense for so much economic activity to be clustered in seasonal fashion?

Here are some con reasons:

1. Congestion: try parking your car at Tysons Corner on a Saturday afternoon in December.

2. Producers must make all-or-nothing bets on new styles, which then either take off or fall flat.  The economy becomes riskier than it need be.

3. The short-run marginal cost curve is (possibly) rising, so it is more costly to produce so much for the final quarter all at once.  Overtime rises as well.

4. Gift-giving may be an inefficient form of signaling with high deadweight losses.

5. The Christmas season encourages undue attention to creating "blockbusters" rather than quality niche goods.  This trend is evident in the book market.

If these hold, on net, we pay an inefficiently large amount of attention to Christmas.  We should tax Santa at the margin.

Here are some pro reasons:

1. Shopping involves fixed costs, so let’s get it all over with at the same time.  The same might be said for tracking consumer demands, or even producing the stuff.

2. New ideas have a better chance of getting a start when we bunch demand in concentrated fashion and increase returns.  Christmas boosts innovation, which is in general undersupplied.

3. Once the season is over, it is over.  We have a simpler mechanism for getting rid of failed products and failed ideas.

4. There is no other way to produce that "Christmas spirit."

I incline toward the "pro" reasons, with emphasis on number two.  Though I do not pretend to have a grip on the empirics of this question.)  But if seasonal cycles are so good, why do I object to regular business cycles?  Can it matter so much that one is anticipated and the other not?  If, statistically, they look so much alike, can it be said that one is based on coordination failure and the other not?

Why do some stores have longer lines than others?

Let’s put aside the simple explanations, such as "Nobody goes there."  Let’s also put aside artificially contrived scarcities, such as for Super Bowl tickets or hot restaurants on Saturday night.  We are left with the following:

1. Some stores put impulse purchases next to where you wait in line.  If the line is too quick you won’t spend any more money.  Borders uses this strategy very effectively, it is harder for Home Depot.

2. The authority of final decision-making is to some extent indivisible, plus managers can only be hired in integer numbers.  Yet some stores require more managerial attention to resolve disputes than others.  I never bicker over price in the supermarket, but ever try to get a late fee waived in a video store?

3. Some stores may use growing and shrinking lines as a substitute for changing prices.  The waiting time in line at my Giant is often longest late at night.  In essence they are charging you a higher price to shop late at night.  The company "wins back" some of this tax by skimping on labor costs.  Perhaps this system of "flex prices" is easier than altering the bar codes or price stickers on an hourly basis.

4. Long lines may serve the cause of price discrimination.  Perhaps the store offers personalized shopper services, free home delivery, or other services at a premium.  These ancillary benefits might be more profitable if shopping takes just a bit of time.  Low-income demanders won’t mind so much, high-income demanders may be pushed to the extra services.

5. Rentals take more time to process than do cash transactions.  Some of the incidence of this burden falls on consumers.  If rentals take twice as long to process, and consumers arrive at random rates, the profit-maximizing solution is not generally to double the number of service clerks.  This would lead to an excess of idle labor during the day.

6. Many consumers are a pain.  But they are less likely to complain or slow down the process when the line behind them is long.  So attempts to shorten the line are to some extent counteracted by the increasingly difficult behavior of your fellow man.  This lowers the store’s return to line-shortening.  The store prefers to capture some of these rents by cutting back on service, rather than allowing their more difficult consumers to push everyone around.

7. Perceptual biases and selection – It feels like you are waiting in line most of the time because you are.  When you are not waiting, the experience ends quite rapidly.

Explanation number two is taken from Caroline Mayer’s "A Perpetual State of Pause," The Washington Post, December 5, not yet on-line. 

Phantom markets

A woman’s effort to assuage her 6-year-old son’s fears of his grandfather’s ghost by selling it on eBay has drawn more than 34 bids with a top offer of $78 [TC: the price is now up to 15K, as of Sunday morning].

Mary Anderson said she placed her father’s "ghost" on the online auction site after her son, Collin, said he was afraid the ghost would return someday. Anderson said Collin has avoided going anywhere in the house alone since his grandfather died last year…

Anderson also put her father’s metal walking cane up for auction so she would have something to actually send the winning bidder. The proceeds from the auction will go to buy Collin a special present, she said.

Here is the full story.  Here is the auction.  Here is an elastic supply of copycats.

Bhagwati talking to Stiglitz

He [Joe Stiglitz] actually told me that he faced [spoke to] a hundred thousand people at Bombay…I did tell him that he should not get too excited, because I grew up in Bombay and when I went for a walk to the beach, I normally saw about two hundred thousand people! So that doesn’t mean very much in Bombay.

Here is the whole interview, which has numerous interesting bits on India, globalization, and economic development.  Here is my earlier post on population density in Bombay.

The unhealthy price of textbooks

Henry over at Crooked Timber wants to know why some books are so expensive.  The answer is that the books he has in mind are textbooks and the person choosing the textbook isn’t the one paying the price.  In effect, the professor is buying the book but with someone else’s money.  Hmmm, does this remind you of any other markets?  Here’s a hint, the 3rd edition of Health Economics by Charles Phelps is $122.60.  Here’s another application.

Addendum: Mark Steckbeck has a nice post explaining one reason why textbooks prices have increased in recent years.  The internet has made resale easier thus adding to the book’s value and, as publishers realize that demand has increased, to the book’s price.   Interesting possibility mentioned by Mark is that increases in nominal prices are consistent with decreases in real (after resale) prices.

Could the Euro become the global reserve currency?

The dollar’s share of global foreign-exchange reserves has already fallen from 80% in the mid-1970s to around 65% today. And yet does the dollar really risk losing its status as the world’s main currency? The same question was asked in the early 1990s after the dollar’s previous long slide, but the dollar’s pre-eminence survived. Then, however, there was no alternative to the dollar. Today the euro exists, and could yet emerge as a rival to the greenback.

The requirements of a reserve currency are a large economy, open and deep financial markets, low inflation and confidence in the value of the currency. At current exchange rates the euro area’s economy is not that much smaller than America’s; the euro area is also the world’s biggest exporter; and since the creation of the single currency, European financial markets have become deeper and more liquid. It is true that the euro area has had slower real GDP growth than America. But in dollar terms the euro area’s economic weight has actually grown relative to America’s over the past five years.

Where the dollar has failed is as a store of value. Since 1960 the dollar has fallen by around two-thirds against the euro (using Germany’s currency as a proxy before 1999) and the yen (see chart 1). The euro area, unlike America, is a net creditor. Never before has the guardian of the world’s main reserve currency been its biggest net debtor. And a debtor may be tempted to use devaluation to reduce its external deficit–hardly a desirable property for a reserve currency.

Here is the full story.

My (cautious) take:  The Euro area is rich in accumulated bank accounts but running a massive long-run deficit, most of all on human capital.  Plus what will happen when countries start rejecting the EU constitution in their referenda?  And don’t currency markets have some tendency to long-run mean reversion, suggesting the dollar will make a comeback someday? So I say no, the Euro will not become the world’s reserve currency.  That being said, every prediction I have made about the Euro has been wrong to date.  I said it wouldn’t happen, it can’t last long, and it won’t rise in value.  That is 0-3, must I now step away from the plate? 

Thanks to Kevin Postlewaite for the pointer.