Month: September 2011

The luck of the Irish

Ireland now has had two quarters of considerably stronger than expected growth, it’s now both gnp and gdp, and domestic  demand (!) is up, and borrowing rates are down, though employment remains miserable.  Even I am surprised by the positive signs here (I never bought the doctrine of expansionary fiscal austerity, though I saw austerity as necessary for Ireland), and yet now Paul Krugman claims to have expected this all along:

Look, standard Keynesian models, open-economy version, tell a very clear story about what happens when a country pegs its exchange rate at a level that leaves its industry uncompetitive. The country doesn’t stay depressed forever: high unemployment leads to actual or at least relative deflation, which gradually improves cost-competitiveness, which leads to rising net exports and gradual expansion. In the long run, full employment is restored; it’s just that in the long run we’re all, well, you get the picture.

Somehow, reading Krugman, I had the expectation that fiscal austerity would lead to falling output and deflationary pressures and downward spirals for some time to come, at least for open economies with fixed exchange rates in suboptimal currency unions.  But put the generalities aside, what were the published claims and predictions about Ireland?:

Here Krugman says Ireland is “gaining nothing” and attacks Trichet for denying “stagnation.”  Late 2010 Krugman tells us that the “Irish are suffering from plunging incomes,” “confidence is not improving,” and investors are fleeing the country.  No mention of the just around the corner recovery in output and aggregate demand, maybe it didn’t fit the word count.  We were told, however, that “confidence just keeps draining away.”

Here is a March 2011 interview where Krugman says (this is the newspaper paraphrasing him, maybe he was misquoted):

Ireland, Greece and Britain are examples of how spending cuts have failed to bring a rise in confidence or benefit growth or the jobs market.

In early 2011 Krugman noted that Ireland’s “medium-term”  prospects look “desperate” and he calls it an especially hard case within the eurozone.  No mention of the pending recovery in output and aggregate demand.

April 2011, here we are told, discussing Ireland and Greece together, that contractionary policies will shrink output.  A similar point was made in 2009, concerning incomes.

Here he graphed the borrowing rate for Ireland and pointed out it was rising because of austerity; in reality the graph continued to update after his post and it shows the rate plunging right after the post was made; yes some of that was EU aid but that same aid has hardly led to falling rates for the other crisis countries.

About a week ago, Brad DeLong pointed out that for the vulgar Keynesian view the long run can stretch for as long as fifteen years.  That wasn’t an estimate of when unemployment would go back to normal, but rather of when some version of “classical” macro would start to hold again.

Sorry guys, it is better to admit you were wrong and have what I call a “Horatio moment.”  (Here Krugman claims that the austerity advocates have to invent a mythical version of Keynesian economics to claim a false victory.)

You still don’t have to believe that immediate fiscal contractions are expansionary; in general they’re not, but you can still have been wrong about Ireland.  The simplest lesson to at least try on is that internal devaluation sometimes does better on the AD side than we are inclined to think, or that real factors mattered more than expected, or a bit of both.  Or try Karl Smith’s ideas.  It’s not all about the downward spiral, although this was one scenario laid out in Keynes.  We should and will await more data, not to mention data revisions, but in the meantime it is correct to be surprised by the much-better-than-expected Irish growth performance, and at a difficult global time at that; you can’t claim the American and European growth locomotives pulled them out of the slump.  This expert on the Irish economy offers a sector-by-sector breakdown of the new numbers and he too admits he was surprised.

Addendum: No one is calling Ireland a “success,” nor should we be committed to the view that Ireland can survive the coming storm of eurozone defaults.  Don’t let anyone turn this into an “us vs. them” debate on austerity, but rather keep your eye on the ball, namely predictions about how Ireland would fare post-austerity.  Nor is the relevant comparison how much of the old output has been won back.  Start with the advent of the austerity, circa 2009, and graph your 2009 and 2010 predictions against what actually happened.  It ain’t a pretty picture, and I’ll be the first to admit (and apparently I am) that my predictions were incorrect.

Assorted links

1. Jazz for cows, via Chris F. Masse, excellent video.

2. Ten books lost to time.

3. New Cochran and Harpending blog.

4. Interesting interview with Robert Lucas and why he voted for Obama.

5. The pessimism and optimism of Matt Yglesias.

6. Rumored version of the EU plan in the works, involves lots of leverage!  Not ready until November 4th, according to this report.  Caveat emptor, but to me it sounds plausible as a prediction.  Can work if Germany is willing to guarantee the trillions.

Efficient Markets in Everything

Sabermetrics worked but “once the casino catches on to your card-counting tricks, you can’t prosper at the table for long.”

NYTimes: The A’s, meanwhile, have tumbled back to mediocrity: the team is on its way to a losing season this year, after compiling a record of 231 wins and 254 losses over the previous three seasons. Most of the innovations introduced or popularized by Beane have been freely adopted by other organizations, thus eliminating whatever stealth advantages he once enjoyed.

… He told me baseball is moving “back to an efficient market — albeit one with some random events that don’t offer perfect efficiency — where whatever you spend, that’s where you’re going to finish.” In short, the Yankees spend a lot and make the playoffs pretty much every year. The Pirates don’t, and they don’t. There are aberrations to this pattern, but the pattern itself is unmistakable.

But the more efficient baseball becomes as a market, I asked him, the worse it is for you, right?

“Oh, yeah!” he said, and laughed.

Driverless car navigates Berlin streets

It can talk, see, drive and no longer needs a human being to control it by remote. The car of the future — completely computer-controlled — is on the streets of Berlin.

All summer, researchers from the city’s Free University have been testing the automobile around the German capital.

The vehicle maneuvers through traffic on its own using a sophisticated combination of devices, including a computer, electronics and a precision satellite navigation system in the trunk, a camera in the front, and laser scanners on the roof and around the front and rear bumpers.

This is working — now — all we need is to have the price tag fall from 400,000 euros to a bit lower.  It’s already safer than human drivers.  The article is here, hat tip to Steve Silberman.

Should the NBA move to a much shorter season?

In light of the lockout, K., a loyal MR reader, poses me this question.  Football, after all, gets by with a relatively small number of games, namely sixteen.  Every game is an event and a ritual.  So how about a 44-game season for basketball?

Fortunately for me, I don’t think this will work economically.  Why not?

1. Basketball is much more star-driven than football, which I take to be team-driven (“the Dallas Cowboys,” etc.).  In basketball, the goal is maximum exposure of the few top stars to as many markets as possible:  “Daddy, I want to go see Kobe Bryant.”  There are only five starters and you can see Kobe’s face and scowl the whole time.

2. Basketball depends partly on particular individual superlative performances, such as massive scoring nights by the top stars and signature dunks.  This requires a lot of games to be run.

3. Correctly or not, a single football game is taken as a decisive test of team quality.  While I would not argue that the best team always wins the Super Bowl, the game does seem to settle something in people’s minds.  A single basketball game too often is very close, depends on foul calls and refereeing, and depends on what appears to be luck, such as whether or not a final shot rims in and out of the basket.  In basketball, it is harder to get the single game to be so meaningful.  In football, a lot of games aren’t very close at all.

4. With the “game as ritual” strategy denied, basketball resorts more to a saturation strategy, if only to remind viewers and fans that it exists.

5. The inputs which get worked hard, namely the players and the arenas, don’t always have high opportunity costs.  Basketball involves less physical wear and tear than does football, which could not consider an 82-game regular season.

The funny thing is, I don’t even watch the NBA regular season, I simply like knowing that it exists and that I can read about it on ESPN and the like.  That longer process, to me, makes the playoffs seem more real.

Self-constraint markets in everything the culture that is Japan

OKITE is a Japanese alarm clock app. It’s designed to help users wake up, but with a twist: it sends embarrassing messages to the user’s Twitter account every time they hit snooze.

And what does it send?:

“From today on I’m going to head to work via unicycle.”

“I want to buy a fast red Ferrari and a horse!”

“Just as I thought, I want to become a stewardess.”

Here are further examples, all in Japanese.

For the pointer I thank Jordan, a loyal MR reader.

The wisdom of RG

From a loyal MR reader:

These higher equity correlations aren’t scary.

The unique volatility of stocks and sectors (the vol of the part orthogonal to SPX returns) is not lower; indeed slightly higher. [TC: try here on SPX]

The correlation increase is driven entirely by higher SPX vol.

In a time of higher SPX vol, to say that higher correlations are scary is the same as saying that it’s scary that unique vols aren’t rising along with the SPX vols.  That’s not scary at all—indeed, I could argue that it’s reassuring.  It’s the higher SPX vols that are scary.

Claims that “stock pickers can’t make money because everything moves together” are false for the same reason.

What are the sectoral shifts in today’s crisis?

I don’t think sectoral shifts are the main story (it’s weak AD much worsened by slow TFP and indeed partly caused by longer-term weak TFP), but I view them as underestimated nonetheless.  This Karl Smith post looks for them and comes up with only a bit.  He does find this:

In terms of employment the main restructuring has been from government to manufacturing.

I don’t think that standard classifications (Mining and Logging, Financial Services, etc.) are always the best way to look for sectoral shifts.  I am struck by this paper (does anyone know of an ungated copy?), by Claessens, Tong, and Wei, which looks for sectoral shifts across credit-intensive firms, trade-intensive firms, and I would add to that firms which sell goods to the damaged segments of the middle class.  It’s still not going to make sectoral shifts the main story, but it does make sectoral shifts a more important part of the transmission channels.  It also shows how tightly connected are sectoral shifts and the AD shocks.

This paper also indicates that monetary policy is more effective than fiscal policy in the recent downturn, in particular for reversing some of the negative shocks to credit-intensive firms.

Addendum: Here is a relevant paper from Chris Reicher.

The wit of the Irish?

What’s unusual about the Irish [medieval] material is that it’s all spelled out so clearly.  This is partly because Irish law codes were the work of a class of legal specialists who seem to have turned the whole thing almost into a form of entertainment, devoting endless hours to coming up with every possible abstract possibility.  Some of the provisos are so whimsical (“if stung by another man’s bee, one must calculate the extent of the injury, but also, if one swatted it in the process, subtract the replacement value of the bee”) that one has to assume they were simply jokes.

That is from David Graeber’s Debt: The First 5,000 Years.

The past and future of music

Posterity may regard as the highlight of Michael Wadleigh’s 1970 documentary Woodstock not the health warning about the brown acid, but the spectacle of Sha Na Na doing “At the Hop.” This crew, at the preeminent ’60s event, surrounded by wobbly idols and dazed wielders of the zeitgeist, were shamanistically retro. Sha Na Na channeled the ’50s by overdoing them, performing cover versions—as George Leonard, the band’s brain, tells Reynolds—at “twice the speed of the originals: I insisted we do the music the way it was remembered instead of the way it was.” The singers wore gold lamé; they bopped and jived absurdly, like celebrants of a forgotten rite. They, not Jefferson Airplane, were the future, by which I mean, of course, the past. The irony that their early-morning set came right before Jimi Hendrix “immolating”—Reynolds’s word—“The Star-Spangled Banner” is almost too exquisite to bear.

From James Parker, here is much more.