Comments, observations and thoughts from two bloggers on applied statistics, higher education and epidemiology. Joseph is an associate professor. Mark is a professional statistician and former math teacher.
Monday, March 28, 2011
What exactly are the localized benefits of a university?
I am, as you might imagine, a great supporter of colleges and college towns as is Joseph, my co-blogger. This puts us in an odd position. We are always looking for an excuse to promote higher education but the current line of argument about the economic benefits of universities at the local level is so weak and ignores so many counter-examples that it may do more harm than good.
The focus on local benefits is almost fatally flawed from the beginning by the fact that most of the benefits accrue at the state or more often national level. Both innovations and people tend to flow with the market. When we fund research and produce skilled workers, the chances of a big long-term pay-off are very good but predicting the exact form and location of that pay-off is all but impossible.
Keeping in mind that we are leaving out the majority of the return we expect on our investment, what benefits do we expect a university to provide to its host?
First there are the soft benefits such as enriching an area's intellectual and cultural life, providing role models, enhancing reputation. Viewed from a high enough level, the soft benefits may turn out to be the far most important, but they are difficult to measure and plan around. For now let's focus on the hard benefits.
University as employer
Universities are often seen as an almost ideal industry -- pollution-free, creating a number of stable, middle-class jobs and generating charming, highly liveable neighborhoods.
The problem here is that, if the suburban model takes hold and the town doesn't have a lot to recommend it outside of the school, the results can be really ugly, leaving the area with no tax base, an economy based on delivering pizzas and thousands of poor, badly-behaved students who get loud and drunk on Thursday night then head back to their parents' houses on Friday.
How do you avoid this fate?
One way is simply to stay small enough to maintain that Mayberry quality where it is possible for a professor to afford a decent little house within three or four miles from the school. I could give you some examples but while they may be charming, they aren't relevant to this discussion.
Another solution is to have a university in a large, economically diverse town where the economy and quality of life won't be completely overwhelmed by the ebb and flow of the academic calendar. Unfortunately, even very large universities only have twenty or thirty thousand employees (academic and administrative). College Station can build an economy around a university. Seattle really can't.
University as incubator
Call this the SAS model. Entrepreneurs who began as students and faculty decide to start some innovative new business just down the street. It's great when these things happen, but they don't seem to happen frequently enough, particularly not on the scale we'll need if we want to count on them to revitalize a stagnating city.
To further complicate matters, this desire to start a business in the vicinity of a school is directly related to the appeal of the area (students who hate to leave a town are more likely to find a way to stay). The vibrant urban areas that are likely to attract these small businesses are the very areas that don't need them.
University as labor supplier
This is probably the most commonly cited effect and it's certainly true that many of the more attractive industries require highly educated workers. It is not, however, so clear that these workers have to be in the area before the jobs are there or that the advantages of being able to recruit from an area college are that great. With only one very small nationally ranked school, Houston can't hope to supply itself with the first string academic talent it needs but that hasn't stopped its phenomenal growth (plenty of Ivy League grads are willing to move south), nor have the advantages of a local school caused Microsoft to focus its attention on UW instead of Waterloo.
Universities are vitally important to our intellectual, cultural and economic future and they have paid for themselves many times over. They do not, however, have that great a record of revitalizing urban areas. It would appear that you need more than a "build it and they will come" attitude, that certain conditions have to be in place and, even with those conditions, the short-term magnitude of the effects may be less than we hope.
Things it's too late to blog about
"Like it's 1999..."
A good James Kwak column with a Joe Nocera link that might be worth using one of your twenty on.
A worthwhile Worthwhile Canadian Initiative post.
An sad story that would have been tragic if not for the amazing restraint and professionalism of the cops on the scene.
Off to bed.
Sunday, March 27, 2011
Weekend Gaming -- Escape the orthogonal
Variants are a good way to get new insights into old familiar games and keep things from getting stale. Some of the most interesting variants are based on replacing the square tiles of a standard chess board with hexagons.
Most games played on an eight by eight rectangular board have been adapted to a six by six by six hex board (such as the one used for Agon). You can find game sets with these boards at many game stores (including mine) or you can create them yourself with pretty much any computer graphics program.
The following list is by no mean exhaustive but it should be a good introduction. You can find complete rules for each game by following the links.
Hexagonal Checkers
I don't know that there's really a standard version of hexagonal checkers so I decided to play around with this one and borrowed the border restriction from Kruzno (you can find a number of others online). There's no reason you can't do some experimenting on your own. (let me know if you come up with something interesting.)
Hexagonal Chess
As previously mentioned, Władysław Gliński's chess variant is hugely popular in Europe (more than 100,000 sets have been sold). I've played this one quite a bit and had a good time with it.
You can probably figure most of the moves out for yourself. The only pieces that might give you trouble are the bishops and,to a lesser extent, the knights.
Bishops come in three colors, which points out an interesting topological feature of a hexagonal grid which I'm betting you can spot for yourself.
TacTex
I believe Piet Hein himself may have come up with this variation on his game TacTix.
Hexagonal Reversi
There's a rather complicated intellectual property background to the game Reversi/Othello, but the game itself couldn't be simpler. Here's one configuration for playing it on a hexagonal board.
I wasn't able to find a standard version of hexagonal reversi. This version seems to work well but there may be room for improvement.
* Always remember to flip your fitness landscape upside-down before dropping your marble. Energy landscapes should be good to go.
For a more on this, take a look at "Fitness Landscapes, Ozark Style."
Saturday, March 26, 2011
Another New Haven thought
But even the strongest cities can't -- and shouldn't have to -- handle the costs of urban poverty by themselves/ In the 1960s and 1970s, rich and middle-class city dwellers fled to the suburbs in part to escape having to pay the costs of addressing urban inequality. Rich enclaves have often formed right outside of urban political boundaries, where the prosperous can be close to the city without having to pay its taxes or attend its schools. A level playing field mans that people should be choosing where to live based on their desires for neighborhood or opportunity, not based on where they can avoid paying for the poor.
-- Edward Glaeser, Triumph of the City, page 258.
The difference between Seattle and New Haven is that the core of Seattle had managed to capture at least part of the prosperity that comes from institutions like the University of Washington and Microsoft. This suggests to me that there is at least a two stage process to using a university to enhance urban prosperity.
It also suggests we might want to be leery about things like significant budget cuts as it would be foolish to risk disrupting these types of success stories.
"Academic Intimidation"
From Paul Krugman:
Regular readers may recall my praise for William Cronon’s Nature’s Metropolis: Chicago and the Great West, a great book that had a big influence on my work in economic geography. Cronon has inspired many other people; Josh Marshall was deeply influenced by his environmental history of New England. Cronon, who teaches at the University of Wisconsin, is, quite simply, a great historian.
He also feels some duty as a citizen, in particular a citizen of his state. So earlier this week he published an op-ed in the Times condemning the power grab by the state’s governor.
And what happened next? Wisconsin Republicans have demanded access to his personal email records.
Yes, personal. Cronon has a wisconsin.edu email address — but nobody, and I mean nobody, considers such academic email addresses something specially reserved for university business. Actually, according to Cronon he has been especially careful, maintaining a separate personal account — but nobody would have considered it out of the ordinary if he mingled personal correspondence with official business on the dot edu address. And no, the fact that he’s at a public university doesn’t change that: when my students take jobs at Berkeley or SUNY, they don’t imagine that they’re entering into a special fishbowl environment that they wouldn’t encounter at Georgetown or Haverford.
But then, we know perfectly well what’s going on here. Republicans aren’t looking for some abuse of Cronon’s position; they’re hoping to find some statement that can be quoted out of context to discredit him. At the very least, they hope that other academics will henceforth feel intimidated...
Friday, March 25, 2011
Universities and prosperity -- another data point
From Wikipedia:
During his visit to Waterloo in October 2005, Microsoft co-founder Bill Gates stated, "Most years, we hire more students out of Waterloo than any university in the world, typically 50 or even more."*This raises some additional questions about the University of Washington's role in Seattle's success.
*For a somewhat different take on this relationship, take a look at this.
Cancer survival rates
Beyond that, there’s a well-known problem with survival-rate comparisons, acknowledged in the Lancet Oncology study:
Cancer survival is a valuable indicator for international comparison of progress in cancer control,despite the fact that part of the variation in cancer survival identified in this study could be attributable to differences in the intensity of diagnostic activity (case-finding) in participating populations.
Here’s how I understand the over-diagnosis issue, in terms of an extreme example: suppose that there’s a form of cancer that kills people 7 years after it starts, and that there is in fact nothing you can do about it. Suppose that country A screens for cancer very aggressively, and always catches this cancer in year 1, while country B chooses to invest its medical resources differently, and never catches the cancer until year 4. In that case, country A will have a 100% 5-year survival rate, while country B will have a 0% 5-year survival rate — because survival is measured from the time the cancer is diagnosed. Yet treatment in country B is no worse than in country A.
Thursday, March 24, 2011
Credit where credit is due
I am not convinced that he has modeled the predictors of urban prosperity well but I find his arguments for the drivers of sprawl to be compelling. I would be skeptical of any attempt to seriously engage the problem that did not consider these points. For example he references a fixed time cost to public transportation (waiting for the bus, traveling between destinations and stops) that puts the focus on car use in a whole different light.
I was back to being impressed with his work in this section.
Teachers are nervous about Michelle Rhee's suggestions because they're afraid other people in power will act like Michelle Rhee
The argument works on two levels: it has a convincing though overly simplistic logic and it casts aspersions on the competence and character of those who object to it.
Of course, it collapses completely if those with the power to hire and fire ignore educators' accomplishments, make arbitrary and opaque decisions, play politics, let small factions gain undue influence over the process.
In other words...
I wish I could say I was shocked to read this, but I can't. I can't tell you that this sort of politics is unusual. I can't even claim that this is my first encounter with a dinner party putsch.
Rhee Dismisses Principal of School That Her Children Attend
By Bill Turque
Washington Post Staff Writer
Friday, May 9, 2008
Oyster-Adams Principal Marta Guzman can recall the ripple of anxiety that ran through some faculty members last summer when they learned that the new D.C. schools chancellor, Michelle A. Rhee, had chosen the bilingual school for her two daughters, a kindergartner and a third-grader.
But Guzman, an educator with more than 30 years' experience, said she wasn't concerned. The dual-immersion program, where native English and Spanish-speaking children learn side by side, has long made the Cleveland Park school among the city's most coveted, with high test scores and a national Blue Ribbon for academic achievement. Every year, parents from outside its attendance boundaries vie through a lottery for a handful of spaces to enroll their children.
"I thought it was a good thing," she said of the Rhee children's enrollment.
This week, Rhee fired her.
Guzman received a form letter from Rhee informing her that she was out of a job effective June 30, one of at least two dozen principals whose contracts for the 2008-09 school year were not renewed. Guzman said she was given no reason for her dismissal, either in the letter from Rhee or at a Monday meeting with Assistant Superintendent Francisco Millet.
...
Guzman's departure has stunned many Oyster-Adams parents who wonder why, in a city filled with under-performing public schools, Rhee would sack a principal who has presided for the past five years over one of its few success stories. The move has also heightened ethnic and class tensions within the school's diverse community. Eduardo Barada, co-chairman of the Oyster-Adams Community Council, the school's PTA, said Guzman was toppled by a cadre of dissatisfied and largely affluent Anglo parents with the ear of a woman who was both a fellow parent and the chancellor.
"I believe there are some parents who want to control and dominate," he said. "They want to silence the Latinos there."
Claire Taylor, council co-chairwoman, said she "absolutely respects Eduardo's position" but doesn't agree with it. "From what I've seen of Michelle Rhee, she is an exceedingly fair person who wants what's in the best interests of the students," she said.
Taylor added that ethnic and class divisions are the norm at Oyster-Adams. "A leaf falls and there are issues," she said.
Taylor was one of a group of Oyster-Adams parents, both white and Latino, who dined with Rhee in November and aired complaints about Guzman. Among the issues raised with Rhee, who took notes, according to another attendee, were Guzman's alleged lack of organization, reluctance to delegate and sometimes-brusque style.
Asked to discuss the dinner, which was at the home of another parent, Taylor said she was "not going to get into intra-school politics."
...
The first sign that her job was in jeopardy, Guzman said, came last month, when Millet convened a meeting of Oyster-Adams teachers to discuss her leadership. Guzman, who was not invited to the meeting, said she learned from a teacher that Millet began the meeting by announcing that a national search was underway for her replacement.
She quickly asked for a meeting with Rhee, who told her about the dinner meeting. Rhee said parents were frustrated by Guzman's lack of organization and "not comfortable with her" on a personal level.
...
Maureen Diner, who has a fourth-grader at the school, said Rhee's silence is not seemly for a chancellor who came into office a year ago promising reform.
"Anybody asked not to return deserves a process, at the very least a community meeting," Diner said. As for Rhee, "she talked about creating a culture of accountability. At the same time, she needs to be accountable for her own actions."
At the risk of putting too fine a point on what is already a damned sharp spike, a group of parents who invite the chancellor of a major metropolitan school district over for dinner will not, as a rule, be poor, simple, honest workin' folk. They will tend to be wealthy, influential and grossly unrepresentative. To accept their invitation at all showed exceptionally poor judgement. To fire one of the district's most effective administrators based on their influence showed none whatsoever.
Of course, under the current system, teachers have protections that principals don't. They can give poor grades for poor work, keep the wooden and the clumsy in the chorus and the second string respectively, write honest evaluations. They can, and often will, be harassed for doing their jobs but they aren't in danger of losing them.
At least for now.
Wednesday, March 23, 2011
In coal's defense, it is a wonderful source of mercury
The little tiny box is “nuclear.”
I knew this, and the chart still is effective. And my kids were at first very skeptical last week when I tried to tell them that so far coal had killed far more people than nuclear power. (Of course the very worst case scenario for a nuclear plant is much worse than the very worst case scenario for any coal-fired plant; but the very worst case scenario for coal plants aggregated is…global warming.)
Introducing the headless clowns analogy
From Friends, season 2:
Chandler: Please tell me you know which one is our baby.Joey: Well, well that one has ducks on his t-shirt, and this one has clowns. And Ben was definitely wearing ducks.Chandler: Ok.Joey: Or clowns. Oh, oh wait. That one's definitely Ben. Remember, he had that cute little mole by his mouth.Chandler: Yeah?Joey: Yeah.Chandler: Hey, Ben, remember us? Ok, the mole came off.Joey: Ahh!Chandler: What're we gonna do? What're we gonna do?Joey: Uh, uh, we'll flip for it. Ducks or clowns.Chandler: Oh, we're gonna flip for the baby?Joey: You got a better idea?Chandler: All right, call it in the air.Joey: Heads.Chandler: Heads it is.Joey: Yes! Whew!Chandler: We have to assign heads to something.Joey: Right. Ok, ok, uh, ducks is heads, because ducks have heads.Chandler: What kind of scary-ass clowns came to your birthday?
Tuesday, March 22, 2011
"Is economics a science?" and other silly question
Worse yet is the idea that being a scientist buys you a certain credibility, that your pronouncements should automatically be given weight because of the lab coat. (There's a reason the FDA doesn't let actors in drug ads dress as doctors any more.) A well-reasoned, well-supported argument from a historian still trumps a stupid one from a scientist.
But if you have to make the classification, it seems obvious to me that economics is a social science, albeit one facing some special challenges (as discussed in this previous post):
Compared to their nearest neighbors, film criticism and economics (particularly macroeconomics) are both difficult, messy fields. Films are collaborative efforts where individual contributions defy attribution and creative decisions often can't be distinguished from accidents of filming. Worse yet, most films are the product of large corporations which means that dozens of VPs and executives might have played a role (sometimes an appallingly large one) in determining what got to the screen.Having said that, the current debate is several notches above what I expected. Brad DeLong is asking some tough questions about economics not just as a science but as a discipline and we're getting some interesting and insightful comments from scientists in other fields.
Economists face a comparably daunting task. Unlike researchers in the hard sciences, they have to deal with messiness of human behavior. Unlike psychologists, microeconomists have few opportunities to perform randomized trials and macroeconomists have none whatsoever. Finally, unlike any other researchers in any other field, economists face a massive problem with deliberate feedback. It is true that subjects in psychological and sociological studies might be aware of and influenced by the results of previous studies but in economics, most of the major players are consciously modifying their behavior based on economic research. It is as if the white mice got together before every experiment and did a literature search. ("Well, there's our problem. We should have been pulling the black lever.")
Faced with all this confusion, film scholars and economists (at least, macroeconomists) both reached the same inevitable conclusion: they would have to rely on broader, stronger assumptions than those colleagues in adjacent fields were using. This does not apply simply to auteurists and freshwater economists. Anyone who does any work in these fields will have to start with some sweeping and unprovable statements about how the world works. Auteurists and freshwater economists just took this idea to its logical conclusion and built their work on the simplest and most elegant assumptions possible, like Euclid demonstrating every aspect of shape and measure using only five little postulates.
(Except, of course, Euclid didn't. His set of postulates didn't actually support his conclusions. The world would have to wait for Hilbert to come up with a set that did. The question of whether economists need a Hilbert will have to wait for another day.)
This time, it's a discussion worth following.
If you can't say something nice, quote Kaufman
I had started writing this post to complain about a waste-of-space article I had read about on a well-known blog, a complaint I would wrap up with a memorable George S. Kaufman anecdote. As I was looking up the quote, though, it hit me that there is nothing less necessary than journalism complaining about unnecessary journalism.
So here's the good part. You can fill in the rest.
Kaufman was one of three panelists on a live, black-and-white TV show called “This is Show Business.” A performer would come on, tell the panel a problem of his, perform and then return to sit before the panel. Each panelist would then comment on the person’s “problem.” (There is a tantalizing glimpse of the great man on this show, on YouTube.)On the memorable night, Pfc. Eddie Fisher — in uniform, looking about 16 — laid out his problem. It was a complaint. He said he was appearing at the Copacabana night club and because of his extreme youth and boyish looks, none of the gorgeous showgirls would consent to go out with him. Then he sang, probably, “O Mein Papa” and sat down to receive the panel’s remarks and advice.
It began with “The Gloomy Dean of American Comedy,” as Kaufman had been labeled by someone. (My guess would be the wit Oscar Levant.) Kaufman’s dark countenance as he balefully gazed upon the juvenile Mr. Fisher promised something good — but what? Though I’m working from memory, the thing is so indelible in my mind that I can just about guarantee you that what follows is no more than — here and there — a few words off. At a measured pace, Kaufman began:
Mr. Fisher, on Mt. Wilson there is a telescope. A powerful telescope that has made it possible to magnify the distant stars to approximately 12 times the magnification of any previous telescope. [pause]
And, Mr. Fisher, atop Mt. Palomar, sits a more recently perfected telescope. This magnificent instrument can magnify the stars up to six times the magnification of the Mt. Wilson telescope.
(Where is he going?, I wondered, glued to the screen, back in Nebraska.)
Then:
As improbable as it would doubtless be, if you could somehow contrive to place the Mt. Wilson telescope inside the Mt. Palomar telescope, Mr. Fisher . . . you still wouldn’t be able to see my interest in your problem.
Make that 300... No, make that 400 years
The late Senator Daniel Patrick Moynihan of New York is often credited with saying that the way to create a great city is to “create a great university and wait 200 years,” and the body of evidence on the role that universities play in generating urban growth continues to grow. (Disclosure: I work for a university.)I'm a big believer in more funding for education and research, but as for generating urban growth, the evidence is decidedly Glaeserian.
I'll let Joseph take it from here:
Mark has been discussing Edward Glaeser and his comments on how universities Now, I am a big fan of universities and think that they serve an important role in global economic development. However, I am dubious that they make any particular community prosperous. Consider New Haven, CT -- the home of Yale University (recently ranked the #11 university in the world).
According to wikipedia, the poverty rate in New Haven is 24%, which compares unfavorably with the rest of the United States where it is 14%. The poverty rate in New Haven, despite the presence of Yale, is nearly twice that of the United States as a whole.
Now, one might note that many of the poor residents of New Haven are likely to be students. This is true. But these students still use municipal services and thus require the local tax base to support them (in addition to the long term residents). They do not (after they graduate and make additional income) send money back to New Haven so, in a sense, New Haven is actually subsiding the urban communities that Yale graduates move to.
So, it is actually possible that a large university in a small community could be a drag on the economy due to the lower per capita tax base. Plus, you have a large segment of the population with only a short term interest in the community which may make long term planning more difficult. And New Haven, CT is not the only university town that I can think of with high levels of poverty.
Furthermore, if a strong local university (like the University of Washington) is a solution to urban poverty (as it was presented in the Detroit versus Seattle comparison of Edward Glaeser) then it is unclear why a stronger economy has not grown up around Yale which is a strong school by any measure.