Economics – Page 179 – artdiamondblog.com

Econometric “Priests” Sell Their New “Gimmicks” as the “Latest Euphoria Drug”

The American Economic Association’s Journal of Economic Perspectives published a symposium focused on the thought-provoking views of the distinguished econometrician Edward Leamer.
I quote below some of Leamer’s comments in his own contribution to the symposium.

(p. 31) We economists trudge relentlessly toward Asymptopia, where data are unlimited and estimates are consistent, where the laws of large numbers apply perfectly and where the full intricacies of the economy are completely revealed. But it’s a frustrating journey, since, no matter how far we travel, Asymptopia remains infinitely far
away. Worst of all, when we feel pumped up with our progress, a tectonic shift can occur, like the Panic of 2008, making it seem as though our long journey has left us disappointingly close to the State of Complete Ignorance whence we began.

The pointlessness of much of our daily activity makes us receptive when the Priests of our tribe ring the bells and announce a shortened path to Asymptopia. (Remember the Cowles Foundation offering asymptotic properties of simultaneous equations estimates and structural parameters?) We may listen, but we don’t hear, when the Priests warn that the new direction is only for those with Faith, those with complete belief in the Assumptions of the Path. It often takes years down the Path, but sooner or later, someone articulates the concerns that gnaw away in each of (p. 32) us and asks if the Assumptions are valid. (T. C. Liu (1960) and Christopher Sims (1980) were the ones who proclaimed that the Cowles Emperor had no clothes.) Small seeds of doubt in each of us inevitably turn to despair and we abandon that direction and seek another.
Two of the latest products-to-end-all-suffering are nonparametric estimation and consistent standard errors, which promise results without assumptions, as if we were already in Asymptopia where data are so plentiful that no assumptions are needed. But like procedures that rely explicitly on assumptions, these new methods work well in the circumstances in which explicit or hidden assumptions hold tolerably well and poorly otherwise. By disguising the assumptions on which nonparametric methods and consistent standard errors rely, the purveyors of these methods have made it impossible to have an intelligible conversation about the circumstances in which their gimmicks do not work well and ought not to be used. As for me, I prefer to carry parameters on my journey so I know where I am and where I am going, not travel stoned on the latest euphoria drug.
This is a story of Tantalus, grasping for knowledge that remains always beyond reach. In Greek mythology Tantalus was favored among all mortals by being asked to dine with the gods. But he misbehaved–some say by trying to take divine food back to the mortals, some say by inviting the gods to a dinner for which Tantalus boiled his son and served him as the main dish. Whatever the etiquette faux pas, Tantalus was punished by being immersed up to his neck in water. When he bowed his head to drink, the water drained away, and when he stretched up to eat the fruit hanging above him, wind would blow it out of reach. It would be much healthier for all of us if we could accept our fate, recognize that perfect knowledge will be forever beyond our reach and find happiness with what we have. If we stopped grasping for the apple of Asymptopia, we would discover that our pool of Tantalus is full of small but enjoyable insights and wisdom.

For the full article, see:
Leamer, Edward E. “Tantalus on the Road to Asymptopia.” Journal of Economic Perspectives 24, no. 2 (Spring 2010): 31-46.

“The Bulk of New Yorkers Do Not Have an Unlimited Appetite for Growing Their Own Kale”

“. . . , Ena K. McPherson holds the key to three different community gardens.” Source of caption and photo: online version of the NYT article quoted and cited below.

(p. D1) There is some evidence, . . . , that the bulk of New Yorkers do not have an unlimited appetite for growing their own kale. Official counts of New York gardens are fragmentary. But John Ameroso, the Johnny Appleseed of the New York community garden movement, suspects that the number of present-day gardens — around 800 — may be half what it was in the mid-1980s.

In his long career as an urban extension agent for Cornell University, Mr. Ameroso, 67, kept a log with ratings of all the plots he visited. “I remember that there were a lot of gardens that were not in use or minimally used,” he said. “Into the later ’80s, a lot of these disappeared or were abandoned. Or maybe there was one person working them. If nothing was developed on them, they just got overgrown.”
The truth, Ms. Stone said, is that at any giv-(p. D6)en time, perhaps 10 percent of the city’s current stock of almost 600 registered GreenThumb gardens is growing mostly weeds. “In East New York, I can tell you that there are basically many gardens that are barely functioning now.”
. . .
An honest census would reveal that many gardens (perhaps most) depend on just one or two tireless souls, said Ena K. McPherson, a Brooklyn garden organizer. She would know because she’s one of them.
Ms. McPherson holds the keys to three community gardens in Bedford-Stuyvesant. (Ms. Stone appreciatively refers to these blocks as “the Greater Ena McPherson Zone.”) And she serves on the operations committee for the nonprofit Brooklyn Queens Land Trust, which holds the deeds to 32 garden plots.
“In an ideal situation, we would have gardens with everyone in the community participating,” Ms. McPherson said. “But in fact, a few die-hard people end up carrying the flag.”
. . .
The original gardens followed the city’s vacant lots, which by 1978 numbered 32,000. Mr. Ameroso, though trained in agronomy, pitched them as an instrument for community renewal. “How did you take back your block?” he said. “Put in a community garden and stop that dumping.”
Ms. Stone, who laughingly (and earnestly) describes herself as a socialist, continues to embrace something of this mission. “All the people who are marginal in society — and I’m not using that as a judgmental term, it’s children, senior citizens, people on disability, the 47 percent — these people are the main power people in the garden,” she said.
These days, Mr. Ameroso espouses more of what he calls an “urban agriculture” model: a food garden with a dedicated farmers’ market or a C.S.A. These amenities make stakeholders out of neighbors who may not like dirt under their nails and rural farmers who drive in every weekend.
“The urban-agriculture ones are flourishing,” he said. “There’s a lot of excitement. They’re active eight days a week.” But “community gardens, as such, where people come in to take care of their own boxes — those are not flourishing.”
It’s almost a cliché to point out that this new green model seems to have attracted tillers with a different skin tone. “Back then,” Mr. Ameroso said of his earlier career, “when we worked in Bronx or Bed-Stuy, it was mostly communities of color. Now when we talk about the urban agriculture stuff, it’s white people in their 30s.”
What explains this demographic shift?
“I have no idea,” he said. “I’m still baffled by it, and I’m involved in it!”

For the full story, see:
MICHAEL TORTORELLO. “IN THE GARDEN; Growing Everything but Gardeners.” The New York Times (Sat., November 1, 2012): D1 & D6.
(Note: ellipses added.)
(Note: the online version of the article was dated October 31, 2012.)

Organic Farming Too Unproductive to End African Starvation

(p. 6) There is no shortage of writing — often from a locavore point of view — in support of more organic methods of farming, for both developed and developing countries. These opinions recognize that current farming methods bring serious environmental problems involving water supplies, fertilizer runoff and energy use. Yet organic farming typically involves smaller yields — 5 to 34 percent lower, as estimated in a recent study in the journal Nature, depending on the crop and the context. For all the virtues of organic approaches, it’s hard to see how global food problems can be solved by starting with a cut in yields. Claims in this area are often based on wishful thinking rather than a hard-nosed sense of what’s practical.

For the full story, see:
TYLER COWEN. “ECONOMIC VIEW; World Hunger: The Problem Left Behind.” The New York Times, SundayBusiness (Sun., September 16, 2012): 6.
(Note: the online version of the article is dated September 15, 2012.)

Edison Foresaw Phonograph Music Potential

“EUROPEAN JOURNEY; Thomas Edison, seated center, sent Adelbert Theodor Edward Wangemann, standing behind him, to France in 1889. From there Wangemann traveled to Germany to record recitations and performances.” Source of caption and photo: online version of the NYT article quoted and cited below.

Edison is often ridiculed for failing to foresee that playing music would be a major use for his phonograph invention. (Nye 1991, p. 142 approvingly references Hughes 1986, p. 201 on this point.) But if Edison failed to foresee, then why did he assign Wangemann to make the phonograph “a marketable device for listening to music”?

(p. D3) Tucked away for decades in a cabinet in Thomas Edison’s laboratory, just behind the cot in which the great inventor napped, a trove of wax cylinder phonograph records has been brought back to life after more than a century of silence.

The cylinders, from 1889 and 1890, include the only known recording of the voice of the powerful chancellor Otto von Bismarck. . . . Other records found in the collection hold musical treasures — lieder and rhapsodies performed by German and Hungarian singers and pianists at the apex of the Romantic era, including what is thought to be the first recording of a work by Chopin.
. . .
The lid of the box held an important clue. It had been scratched with the words “Wangemann. Edison.”
The first name refers to Adelbert Theodor Edward Wangemann, who joined the laboratory in 1888, assigned to transform Edison’s newly perfected wax cylinder phonograph into a marketable device for listening to music. Wangemann became expert in such strategies as positioning musicians around the recording horn in a way to maximize sound quality.
In June 1889, Edison sent Wangemann to Europe, initially to ensure that the phonograph at the Paris World’s Fair remained in working order. After Paris, Wangemann toured his native Germany, recording musical artists and often visiting the homes of prominent members of society who were fascinated with the talking machine.
Until now, the only available recording from Wangemann’s European trip has been a well-known and well-worn cylinder of Brahms playing an excerpt from his first Hungarian Dance. That recording is so damaged “that many listeners can scarcely discern the sound of a piano, which has in turn tarnished the reputations of both Wangemann and the Edison phonograph of the late 1880s,” Dr. Feaster said. “These newly unearthed examples vindicate both.”

For the full story, see:
RON COWEN. “Restored Edison Records Revive Giants of 19th-Century Germany.” The New York Times (Tues., January 31, 2012): D3.
(Note: ellipses added.)
(Note: the online version of the article is dated January 30, 2012.)

“Adelbert Theodor Edward Wangemann used a phonograph to record the voice of Otto von Bismarck.” Source of caption and photo: online version of the NYT article quoted and cited above.

The Economics of Intercollegiate Athletics

Here is more evidence that the role of athletics in higher education should be reconsidered. Another useful discussion occurs in the book by Christensen and Eyring. An earlier entry on this blog is also relevant.

(p. 230) The Knight Commission on Intercollegiate Athletics offers “College Sports 101: A Primer on Money, Athletics, and Higher Education in the 21st Century.” “In fact, the vast majority of athletics programs reap far less money from external sources than they need to function. Virtually all universities subsidize athletics departments through general fund allocations, student fees, and state appropriations, and the NCAA estimates in a given year that only 20 to 30 athletics programs actually generate enough external revenue to cover operating expenses. Institutional subsidies to athletics can exceed $11 million, according to data provided by the NCAA. With costs in athletics rising faster than in other areas of university operations, it is not clear how many institutions can continue to underwrite athletics at their current level . . . Rigorous studies of the subject, however, suggest that there is no significant institutional benefit to athletic success. . . . Indeed, donations to athletics departments may cannibalize contributions to academic programs. . . . There are two other myths to be dispelled. First, there is no correlation between spending more on athletics and winning more . . . Second, increased spending on coaches’ salaries has no significant relationship to success or increased revenue . . . October 2009, at 〈http://collegesports101.knightcommission.org〉.

Source:
Taylor, Timothy. “Recommendations for Further Reading.” Journal of Economic Perspectives 24, no. 2 (Spring 2010): 227-34.
(Note: ellipses in original.)

The Knight Commission report can be downloaded at:
Weiner, Jay. “College Sports 101: A Primer on Money, Athletics, and Higher Education in the 21st Century.” Knight Commission on Intercollegiate Athletics, 2009.

The Christensen and Eyring book is:
Christensen, Clayton M., and Henry J. Eyring. The Innovative University: Changing the DNA of Higher Education from the Inside Out. San Francisco, CA: Jossey-Bass, 2011.

Coase: “Firms Never Calculate Marginal Costs”

Source of YouTube video:
http://www.youtube.com/watch?feature=player_embedded&v=ZAq06n79QIs#!

(p. 257) You can watch a 99 year-old Ronald Coase speaking in December 2009 for 25 minutes on the subjects of “Markets, Firms and Property Rights.” “One of the things that people don’t understand is that markets are creations. . . . In fact, it’s very difficult to imagine that firms act in the way that is described in the textbooks, where you maximize profits by equating marginal costs and marginal revenues. One of the reasons one can feel doubtful about this particular way of looking at things is that firms never calculate marginal costs . . . I think we ought to study directly how firms operate and develop our theory accordingly.” From the conference “Markets, Firms and Property Rights: A Celebration of the Research of Ronald Coase,” held at the University of Chicago Law School by the Information Economy Project at George Mason University School of Law. The webpage also includes video of seven panels of prominent speakers, along with PDF files of a dozen or so papers given at the conference. Available at 〈http://iep.gmu.edu/CoaseConference.php〉.

Source:
Taylor, Timothy. “Recommendations for Further Reading.” Journal of Economic Perspectives 24, no. 3 (Summer 2010): 251-58.
(Note: ellipses in original.)

Health Inefficiencies Free-Ride on “Home Run Innovations”

The article quoted below is a useful antidote to those economists who sometimes seem to argue that health gains fully justify the rise in health costs.

(p. 645) In the United States, health care technology has contributed to rising survival rates, yet health care spending relative to GDP has also grown more rapidly than in any other country. We develop a model of patient demand and supplier behavior to explain these parallel trends in technology growth and cost growth. We show that health care productivity depends on the heterogeneity of treatment effects across patients, the shape of the health production function, and the cost structure of procedures such as MRIs with high fixed costs and low marginal costs. The model implies a typology of medical technology productivity: (I) highly cost-effective “home run” innovations with little chance of overuse, such as anti-retroviral therapy for HIV, (II) treatments highly effective for some but not for all (e.g., stents), and (III) “gray area” treatments with uncertain clinical value such as ICU days among chronically ill patients. Not surprisingly, countries adopting Category I and effective Category II treatments gain the greatest health improvements, while countries adopting ineffective Category II and Category III treatments experience the most rapid cost growth. Ultimately, economic and political resistance in the United States to ever-rising tax rates will likely slow cost growth, with uncertain effects on technology growth.

Source of abstract:
Chandra, Amitabh, and Jonathan Skinner. “Technology Growth and Expenditure Growth in Health Care.” Journal of Economic Literature 50, no. 3 (Sept. 2012): 645-80.

When Trade Is a Matter of Life and Death (and the Progress of Knowledge)

Source of book image: http://www.mikedash.com/assets/images/Batavia-l.jpg

(p. 236) In Mike Dash’s book, Batavia’s Graveyard, the mutineers on the ship Batavia get stranded on a parched sand bar with the liquor and foodstuffs, but no fresh water. A few hundred watery yards away are the remnants of the loyal crew, stuck on another islet without liquor or provisions, but with plentiful fresh water. Trade proves impossible. The analog of this breakdown is the current relationship between history and the social sciences.

Source:
Clark, Gregory. “The Ends of Life: Roads to Fulfillment in Early Modern England.” Journal of Economic History 71, no. 1 (March 2011): 236-37.
(Note: italics in original.)

Dash’s book that Clark mentions:
Dash, Mike. Batavia’s Graveyard: The True Story of the Mad Heretic Who Led History’s Bloodiest Mutiny. New York: Crown, 2002.

“Richly Researched” Study of “Ironies of Antitrust Policy” in Retailing

(p. 819) Levinson’s book opens up a crucial discussion on the role of integrated retailer-distributors in shaping the twentieth-century U.S. economy. As he rightly notes in the book’s conclusion, A&P was in many ways the Walmart of its day: it used its buying power to squeeze inefficiencies out of supply chains, it was widely reviled for upending small-town business patterns and bitterly fighting union organizers, and yet it drew waves of customers who appreciated its low prices. While we have many business histories of mass-production industries, we have only a handful of richly researched studies of the mass retailers that have, in the words of historian Nelson Lichtenstein (2009), “become the key players in the worldwide marketplace of our time.” Levinson has produced a valuable book for business and economic historians interested in retailing, supply chains, and the ironies of antitrust policy. As a former editor for The Economist, furthermore, Levinson is particularly effective at translating challenging economic concepts into language that lay audiences and undergraduate students can grasp.

For the full review, see:
Hamilton, Shane. “The Great A&P and the Struggle for Small Business in America.” Journal of Economic Literature 50, no. 3 (Sept. 2012): 818-19.
(Note: italics in original.)

The book under review is:
Levinson, Marc. The Great A&P and the Struggle for Small Business in America. New York: Hill and Wang, 2011.

The Lichtenstein book mentioned is:
Lichtenstein, Nelson. The Retail Revolution: How Wal-Mart Created a Brave New World of Business. hb ed. New York: Metropolitan Books, 2009.

Thiel Fellows Avoid Formal Education to Pursue Entrepreneurial Projects

“Eden Full, 20, tested her rotating solar panel in Kenya in 2010.” Source of caption and photo: online version of the NYT article quoted and cited below.

(p.1) EDEN FULL should be back at Princeton by now. She should be hustling to class, hitting the books, acing tests. In short, she should be climbing that old-school ladder toward a coveted spot among America’s future elite.

She isn’t doing any of that. Instead, Ms. Full, as bright and poised and ambitious as the next Ivy Leaguer, has done something extraordinary for a Princetonian: she has dropped out.
It wasn’t the exorbitant cost of college. (Princeton, all told, runs nearly $55,000 a year.) She says she simply received a better offer — and, perhaps, a shot at a better education.
Ms. Full, 20, is part of one of the most unusual experiments in higher education today. It rewards smart young people for not going to college and, instead, diving into the real world of science, technology and business.
The idea isn’t nuts. After all, Bill Gates and Steve Jobs dropped out, and they did O.K.
Of course, their kind of success is rare, degree or no degree. Mr. Gates and Mr. Jobs changed the world. Ms. Full wants to, as well, and she’s in a hurry. She has built a low-cost solar panel and is starting to test it in Africa.
“I was antsy to get out into the world and execute on my ideas,” she says.
At a time when the value of a college degree is being called into question, and when job prospects for many new graduates are grimmer than they’ve been in years, perhaps it’s no surprise to see a not-back-to-school movement spring up. What is surprising is where it’s springing up, and who’s behind it.
The push, which is luring a handful of select students away from the likes of Princeton, Harvard and M.I.T., is the brainchild of Peter A. Thiel, 44, a billionaire and freethinker with a remarkable record in Sil-(p. 7)icon Valley. Back in 1998, during the dot-com boom, Mr. Thiel gambled on a company that eventually became PayPal, the giant of online payments. More recently, he got in early on a little start-up called Facebook.
Since 2010, he has been bankrolling people under the age of 20 who want to find the next big thing — provided that they don’t look for it in a college classroom. His offer is this: $50,000 a year for two years, few questions asked. Just no college, unless a class is helpful for their Thiel projects.
. . .
Ms. Full is friends with another Thiel fellow, Laura Deming, 18. Ms. Deming is clearly brilliant. When she was 12, her family moved to San Francisco from New Zealand so she could work with Cynthia Kenyon, a molecular biologist who studies aging. When Ms. Deming was 14, the family moved again, this time to the Boston area, so she could study at M.I.T.
“Families of Olympic-caliber athletes make these kinds of sacrifices all the time,” says Tabitha Deming, Laura’s mother. “When we lived nearby in Boston, we were lucky to see her once a month. She never came home for weekends.”
John Deming, Laura’s father, graduated from Brandeis University at the age of 35 but says he disdains formal education at every level. His daughter was home-schooled.
“I can’t think of a worse environment than school if you want your kids to learn how to make decisions, manage risk and take responsibility for their choices,” Mr. Deming, an investor, wrote in an e-mail. “Rather than sending them to school, turn your kids loose on the world. Introduce them to the rigors of reality, the most important of which is earning your own way.” He added, “I detest American so-called ‘education.’ ”
His daughter’s quest to slow aging was spurred by her maternal grandmother, Bertie Deming, 85, who began having neuromuscular problems a decade ago. Laura, a first-year fellow, now spends her days combing medical journals, seeking a handful of researchers worth venture capital funding, which is a continuation of her earlier work.
“I’m looking for therapies that target aging damage and slow or reverse it,” she says. “I’ve already spent six years on this stuff. So far I’ve found only a few companies, two or three I’m really bullish on.”

For the full story, see:
CAITLIN KELLY. “Drop Out, Dive In, Start Up..” The New York Times, SundayBusiness (Sun., September 16, 2012): 1 & 7.
(Note: ellipsis added.)
(Note: the online version of the article is dated September 15, 2012, and had he title “Forgoing College to Pursue Dreams.”)

“Laura Deming, left, at age 6 with her grandmother, whose neuromuscular problems have now inspired Laura to work on anti-aging technology.” Source of caption and photo: online version of the NYT article quoted and cited above.

Preindustrial Icelanders Adapted to Adverse Global Cooling

(p. 254) We investigate the effect of climate on population levels in preindustrial Iceland. We find that short-term temperature changes affect the population growth rate. In particular, a 1ºC decrease in temperature causes about 0.57 percent decrease in the population growth rate for the two subsequent years, for a total effect of 1.14 percent. This effect appears to attenuate as the growth rate returns to trend in subsequent years. We also quantify the extent to which eighteenth- and nineteenth-century Icelanders adapt to long-run climate change. In particular, the data suggest that long-run adaptation to climate takes about 20 years and reduces the effect of cold shocks by about 60 percent. Our results also allow us to approximate the effect of permanent climate change on steady-state population levels. This approximation suggests that steady state population levels decrease by 10 percent to 26 percent for each 1ºC of sustained adverse temperature change.
(p. 255) . . .
If contemporary poor agricultural populations behave like their eighteenth- and nineteenth century Icelandic counterparts, then our results suggest that adverse climate change (which now refers to warming, not cooling) will have three effects. First, in the short run it will lead to a significant decrease in population growth rates. Second, over the course of a generation, adaptation will offset about 60 percent of the short run effects. Finally, in the long run, we expect a decrease in steady-state populations.

For the full article, from which the above conclusion is quoted, see:
Turner, Matthew A., Jeffrey S. Rosenthal, Jian Chen, and Chunyan Hao. “Adaptation to Climate Change in Preindustrial Iceland.” American Economic Review 102, no. 3 (May 2012): 250-55.
(Note: underlining added; the underlined words appeared on p. 254 of the print issue, and on p. 255 of the online issue, of the article.)