More Choice is a Robust Result of The Long Tail

I’ve discussed in a previous entry, why The Long Tail is a worthy read. The article quoted below, praises a Harvard Business Review article that disagrees. I haven’t had a chance to read the HBR article yet.
Yet on a fundamental level, I am confident that The Long Tail is right. New technologies such as Amazon and YouTube, reduce the cost of content diversity. If the supply curve of diversity moves right, then (ceteris paribus) the quantity of diverse content will increase. Hence, we can robustly expect more diverse content.
And for us free market libertarians, more choice is good.

(p. B5) The Long Tail theory, as explained by its creator, Wired magazine editor Chris Anderson, holds that society is “increasingly shifting away from a focus on a relatively small number of ‘hits’ (mainstream products and markets) at the head of the demand curve and toward a huge number of niches in the tail.”
The reason involves the abundance of easy choice that the Web makes possible. A record store has room for only a set number of titles. ITunes, though, can link to all of the millions of songs that its servers can store. Thus, said Mr. Anderson, “narrowly-targeted goods and services can be as economically attractive as mainstream fare.” Managers were urged to adopt their business plans accordingly.
Since appearing two years ago, the book has been something of a sacred text in Silicon Valley. Business plans that foresaw only modest commercial prospects for their products cited the Long Tail to justify themselves, as it had apparently proved that the Web allows a market for items besides super-hits. If you demurred, you were met with a look of pity and contempt, as though you had just admitted to still using a Kaypro.
That might now start to change, thanks to the article (online at tinyurl.com/3rg5gp), by Anita Elberse, a marketing professor at Harvard’s business school who takes the same statistically rigorous approach to entertainment and cultural industries that sabermetricians do to baseball.
Prof. Elberse looked at data for online video rentals and song purchases, and discovered that the patterns by which people shop online are essentially the same as the ones from offline. Not only do hits and blockbusters remain every bit as important online, but the evidence suggests that the Web is actually causing their role to grow, not shrink.
Mr. Anderson responded on his Long Tail blog, thelongtail.com, saying much of the difference between his analysis and hers involved how hits and non-hits, or “head” and “tail” in the book’s lingo, are measured. Aside from that, he was generous in praising the article, and said he welcomed the sort of rigorous scrutiny the theory was getting.

For the full commentary, see:
LEE GOMES. “PORTALS; Study Refutes Niche Theory Spawned by Web.” The Wall Street Journal (Weds., JULY 2, 2008): B5.

The full information on The Long Tail, is:
Anderson, Chris. The Long Tail. New York: Hyperion, 2006.

The HBR article that is critical of the long tail, is:
Elberse, Anita. “Should You Invest in the Long Tail?” Harvard Business Review 86, no. 7/8 (2008): 88-96.

The 10 Million Dollar Bookmark and the 35 Billion Dollar Egg

Zimbabwean100BillionDollarNote.jpg “A vendor arranges eggs on a new 100 billion Zimbabwean dollar note in Harare July 22, 2008. Zimbabwe’s central bank introduced new higher-value 100 billion Zimbabwe dollar notes on Monday as part of a desperate fight against spiralling hyperinflation, the bank said. An egg now costs $35 billion.” Source of caption and photo: http://www.daylife.com/photo/03ORa153k8bVA

(p. A1) Robert Mugabe has kept his embattled regime in Zimbabwe afloat on a sea of paper money. Now, he’ll have to try to do it without the paper.

The Munich-based company that has supplied Zimbabwe with the special blank sheets to print its increasingly worthless dollar caved in to pressure on Tuesday from the German government for it to stop doing business with the African ruler.

Mr. Mugabe’s regime relies on a steady supply of the paper — fortified with watermarks and other antiforgery features — to print the bank notes that allow it to pay the soldiers and other loyalists who enable him to stay in power. With an annual inflation rate estimated at well over 1 million percent, new notes with ever more zeros need to be printed every few weeks because the older ones lose their worth so quickly.
. . .
Zimbabwe’s central bank stopped posting inflation figures in January, when it stood at a relatively modest 100,580%. A loaf of bread costs 30 billion Zimbabwean dollars.
. . .
Mr. Mangoma uses a 10 million Zimbabwe dollar bank note, worth 0.0008 of a U.S. cent, as a bookmark because he doesn’t “care if I lose it.”

For the full story, see:
MARCUS WALKER and ANDREW HIGGINS. “Zimbabwe Can’t Paper Over Its Million-Percent Inflation Anymore; Under Pressure, German Company Cuts Off Shipments of Blank Bank Notes to Mugabe.” The Wall Street Journal (Weds., JULY 2, 2008): A1 & A10.
(Note: ellipses added.)

ZimbabweBasketCash.jpg

“Harare produce seller Chipo Chivanze needs a basket of cash to make change because of Zimbabwe’s battered currency.” Source of caption: print version of the WSJ article quoted and cited above. Source of photo: online version of the WSJ article quoted and cited above.

Science Fiction Writers Provide More Accurate Forecasts Than Economists

Robert Fogel, quoted below, is a Nobel-Prize-winning professor of economics at the University of Chicago:

(p. 13) I think I’ve largely covered how things looked after World War II, highlighting both what now seems to have been an unjustified pessimism and also the difficulties in forecasting the future. I close with an anecdote from Simon Kuznets. He used to give a one-year course in growth economics, both at Johns Hopkins and Harvard. One of the points he made was that if you wanted to find accurate forecasts of what happened in the past, don’t look at what the economists said. The economists in 1850 wrote that the progress of the last decade had been so great that it could not possibly continue. And economists at the end of the nineteenth century wrote that the progress of the last half century had been so great that it could not possibly continue during the twentieth century. Kuznets said you would come closest to an accurate forecast if you read the writers of science fiction. But even the writers of science fiction were too pessimistic. Jules Verne recognized that we might eventually get to the moon, but he couldn’t conceive of the technology that actually made the journey possible.

I was at a 2003 conference at Rockefeller University that brought together about 30 people from different disciplines (economics, biology, chemistry, and physics, as well as some industrial leaders) who put forward their views of what was likely to happen in the new millennium. And I must say that the noneconomists were far more bullish than most of the economists I know. So I suspect if we have another MussaFest in 2024, we’ll all look back at how pessimistic we were in 2004.

Source:
Fogel, Robert W. “Reconsidering Expectations of Economic Growth after World War Ii from the Perspective of 2004.” IMF Staff Papers 52 (Special Issue 2005): 6-14.

Good Laws Protect the Innovator

James Burke writes well, and what he writes is often stimulating, and thought-provoking. On the other hand, some of what he writes is exasperating—he writes in sweeping generalities, and often his ‘connections’ are exaggerations, giving no weight (or even mention) to alternative, equally plausible accounts.
But on balance, I enjoy listening to him. Here is one of the bits I especially liked:

(p. 19) Because the rule of law exists, and above all because it encourages and protects acts of innovation with patent legislation, we in the modern world expect that tomorrow will be better than today. Our view of the universe is essentially optimistic because of the marriage between law and innovation. Law gives an individual the confidence to explore, to risk, to venture into the unknown, in the knowledge that he, as an innovator, will be protected by society.

Source:
Burke, James. The Day the Universe Changed: How Galileo’s Telescope Changed the Truth and Other Events in History That Dramatically Altered Our Understanding of the World. Back Bay Books, 1995.

“The Value Conferred on Mankind by the Unknown Inventor of the Plough”

Who will attempt to calculate the value conferred on mankind by the unknown inventor of the plough?

Source:
Say, Jean-Baptiste. A Treatise on Political Economy. Philadelphia: Lippincott, Grambo & Co., 1855; translator C. R. Prinsep, ed. Clement C. Biddle. Fourth-fifth edition.
First published: 1803, in French.
The quotation is from BOOK I, CHAPTER VI “Of Operations Alike Common To All Branches of Industry.”
Full text is posted at: http://www.econlib.org/library/Say/sayT.html
(Note: Say is one of the earliest economists to recognize the importance of entrepreneurs. Today he is best known for his Say’s Law. He lived from 1767-1832.)

When the Ship Is Sinking, Schumpeter Suggests: “Rush to the Pumps”

Wabash economics professor Ben Rogge’s best lecture focused on a question made famous by Schumpeter: “Can Capitalism Survive?” In some ways, Ben’s message was a pessimistic one.
But near the end of his lecture, Rogge included the following quote from Schumpeter’s Capitalism, Socialism and Democracy:

(p. xi) This leads to the charge of “defeatism.” I deny entirely that this term is applicable to a piece of analysis. Defeatism denotes a certain psychic state that has meaning only in relation to action. Facts in themselves and inference from them can never be defeatist or the opposite whatever that might be. The report that a given ship is sinking is not defeatist. Only the spirit in which this report is received can be defeatist: The crew can sit down and drink. But it can also rush to the pumps.

Source of quote:
Schumpeter, Joseph A. Capitalism, Socialism and Democracy. 3rd ed. New York: Harper and Row, 1950.

Reference to Rogge’s collection of essays that includes the title essay mentioned above:
Rogge, Benjamin A. Can Capitalism Survive? Indianapolis: Liberty Fund, Inc., 1979.

“We Will Stay a Laissez-Faire Economy”

AnsipAndrusEstonianPrimeMinister.jpg

“Andrus Ansip, leader of Estonia, an ex-Soviet Republic.” Source of caption and photo: online version of the NYT article quoted and cited below.

An earlier entry suggested that Estonian Prime Minister Andrus Ansip’s support for Steve Forbes’ flat tax, had helped Estonia achieve a high rate of growth.
Apparently there is some sentiment in Estonia to stay the course:

(p. B6) TALLINN, Estonia — For nearly two decades, Estonia embraced capitalism with such gusto that it seemed to be channeling the laissez-faire philosophy of Milton Friedman. From its policies meant to attract foreign investors to its flat tax and freewheeling business culture, it stood out as the former Soviet republic most adept at turning post-Communist chaos into a thriving market economy.
Now Estonians, and some of their Baltic neighbors, are slogging through their first serious economic downturn since liberation from the Soviet grip in the early 1990s.
. . .
Whatever happens, government officials say there will be no betrayal of Friedman’s philosophy. “We will stay a laissez-faire economy,” said Juhan Parts, Estonia’s minister of the economy.
. . .
“I’m an optimist,” said Marje Josing, director of the Estonian Institute for Economic Research. “Fifteen years ago things looked bad, but they managed. A little real-life pressure won’t hurt.”
Indeed, so far the downturn has done little to discourage Estonia’s ambitious entrepreneurs. If anything, it has made them look more avidly elsewhere for growth.
“Estonia may be a small country,” Tarmo Prikk, chief executive of Thulema, an office furniture maker, said with a laugh. “But my ego is bigger.”

For the full story, see:
CARTER DOUGHERTY. “Estonia’s Let-It-Be Economy Is Rattled by Worldwide Distress.” The New York Times (Fri., October 10, 2008): B6.
(Note: ellipses added.)

Obama Plans Big Increases in Many Taxes

TaxPlanComparisonTable.gif

Source of table: online version of the WSJ article quoted and cited below.

(p. A13) When it comes to taxes, the difference between Barack Obama and John McCain is arguably as wide as it’s been in a presidential race since Ronald Reagan and Walter Mondale battled in 1984. Sen. Obama is proposing to raise taxes more than any recent candidate, while Sen. McCain wants to cut them substantially.
. . .
In sum, Mr. Obama is proposing to use the tax code to substantially redistribute income — raising tax rates on a minority of taxpayers to finance tax credits and direct income supplements to millions of others. How much revenue his higher rates would raise depends on how much less those high-earners would work, or how much they would change their practices to shelter their income from those higher rates.
By contrast, Mr. McCain is proposing some kind of tax reduction for most Americans who pay taxes. He says he would finance those cuts by reducing the rate of growth in federal spending.

For the full commentary, see:
Brian M. Carney. “The Election Choice: Taxes.” The Wall Street Journal (Sat., OCTOBER 25, 2008): A13.
(Note: ellipsis added.)

Democratic Housing Secretary Cisneros Aided Irresponsible House Buying

ClintonCisneros.jpg

“Henry G. Cisneros, secretary of housing and urban development, speaking to President Bill Clinton on Dec. 19, 1994, in Washington.” Source of caption and photo: online version of the 2006 NYT article cited below.

(p. 1) SAN ANTONIO — A grandson of Mexican immigrants and a former mayor of this town, Henry G. Cisneros has spent years trying to make the dream of homeownership come true for low-income families.

As the Clinton administration’s top housing official in the mid-1990s, Mr. Cisneros loosened mortgage restrictions so first-time buyers could qualify for loans they could never get before.
Then, capitalizing on a housing expansion he helped unleash, he joined the boards of a major builder, KB Home, and the largest mortgage lender in the nation, Countrywide Financial — two companies that rode the housing boom, drawing criticism along the way for abusive business practices.
And Mr. Cisneros became a developer himself. The Lago Vista development here in his hometown once stood as a testament to his life’s work.
Joining with KB, he built 428 homes for low-income buyers in what was a neglected, industrial neighborhood. He often made the trip from downtown to ask residents if they were happy.
“People bought here because of Cisneros,” says Celia Morales, a Lago Vista resident. “There was a feeling of, ‘He’s got our back.’ ”
But Mr. Cisneros rarely comes around anymore. Lago Vista, like many communities born in the housing boom, is now under stress. Scores of homes have been foreclosed, including one in five over the last six years on the community’s longest street, Sunbend Falls, according to property records.
While Mr. Cisneros says he remains proud of his work, he has misgivings over what his passion has wrought. He insists that the worst problems developed only after “bad actors” hijacked his good intentions but acknowledges that “people came to homeownership who should not have been homeowners.”

For the full story, see:
DAVID STREITFELD and GRETCHEN MORGENSON. “The Reckoning; Man in the Middle; Building Flawed American Dreams; Helping Low-Income Families Buy Homes and Watching the Failures.” The New York Times, Section 1 (Sun., October 19, 2008): 1 & 23.

See also:
DAVID JOHNSTON and NEIL A. LEWIS. “Inquiry on Clinton Official Ends With Accusations of Cover-Up.” The New York Times (Thurs., January 19, 2006).

CisnerosDeveloper.jpg “THE DEVELOPER Henry Cisneros in his office in San Antonio with Sylvia Arce-Garcia, an executive assistant. He is the head of CityView, a developer.” Source of caption and photo: online version of the 2008 NYT article cited above.

“Ill-Conceived Regulation Poisoned the System”

RiskFormula.gif

Source of formula title and of formula: online version of the WSJ commentary quoted and cited below.

(p. A17) Here’s how ill-conceived regulation poisoned the system. Until recently, bank CEOs and regulators slept well at night thanks to a financial model developed in the 1990s called “value at risk” or VaR. It assesses historical variances and covariances among different securities, informing financial institutions of the risks they’re taking. By assessing risk factors across all securities, VaR can compare historical levels of risk for given portfolios, usually up to a 99% probability that banks would not lose more than a certain amount of money. In normal times, banks compare the VaR worst case with their capital to make sure their reserves can cover losses.

But VaR can’t account for extreme unprecedented events — the collapse of Barings in 1995 due to a rogue trader in Singapore, or today’s government-mandated bad mortgages bundled into securities that are hard to value and unwind. The “1% likely” happened. And because the 1% literally didn’t compute, there was no estimate of the stunning losses that have occurred.
Yale mathematician Benoit Mandelbrot pointed out the shortcomings of the VaR model in his “The (Mis)behavior of Markets,” published in 2004. He noted that bell curves work for, say, disparities in the height of people. In markets, instead of flat tails of rare events at either end of the bell curve, there are “fat tails” of huge upsides and huge downsides. Markets are more complex than the neat shape of bell curves.
Last year’s bestselling nonfiction book had a similar theme. In “The Black Swan,” former trader Nassim Nicholas Taleb pointed out that extreme outcomes are actually common, warning that financial engineers — “scientists,” as he calls them — ignore these unlikely outcomes at their peril. But today’s credit panic was not entirely unpredictable. Mr. Taleb was prescient in writing, “The government-sponsored institution Fannie Mae, when I look at their risks, seems to be sitting on a barrel of dynamite, vulnerable to the slightest hiccup. But not to worry: Their large staffs of scientists deemed these events ‘unlikely.'”

For the full commentary, see:
L. GORDON CROVITZ. “The 1% Panic.” The Wall Street Journal (Mon., OCTOBER 13, 2008): A17.
(Note: the online version of the article had the following added subtitle: “Our financial models were only meant to work 99% of the time.”)

For the Taleb book mentioned in the commentary, see:
Taleb, Nassim Nicholas. The Black Swan: The Impact of the Highly Improbable. New York: Random House, 2007.

For an insightful review of the Taleb book, see:
Diamond, Arthur M., Jr. “Review of the Black Swan: The Impact of the Highly Improbable.” Journal of Scientific Exploration 22, no. 3 (2008): 419-22.

L.E.D.’s as the Next Leapfrog Advance in Light


A few years ago I presented a paper at the meetings of Society for Social Studies of Science in which I mentioned Nordhaus’s wonderful paper in which he measures advances in technology that produce illumination. Some of the technologies represent leapfrog advances that are part of Schumpeter’s process of creative destruction.
At the end of my presentation, a member of the audience gave me a reference to the new L.E.D. light technology that he suggested was the next leapfrog advance. (Alas, I do not remember his name.)

(p. C3) L.E.D. bulbs, with their brighter light and longer life, have already replaced standard bulbs in many of the nation’s traffic lights. Indeed, the red, green and yellow signals are — aside from the tiny blinking red light on a DVD player, a cellphone or another electronic device — probably the most familiar application of the technology.

But it is showing up in more prominent spots. The ball that descends in Times Square on New Year’s Eve is illuminated with L.E.D.’s. And the managers of the Empire State Building are considering a proposal to light it with L.E.D. fixtures, which would allow them to remotely change the building’s colors to one of millions of variations.
. . .
The problem, though, is the price. A standard 60-watt incandescent usually costs less than $1. An equivalent compact fluorescent is about $2. But in Europe this September, Philips, the Dutch company dealing in consumer electronics, health care machines and lighting, is to introduce the Ledino, its first L.E.D. replacement for a standard incandescent. Priced at $107 a bulb, it is unlikely to have more than a few takers.
“L.E.D. performance is there, but the price is not,” said Kevin Dowling, a Philips Lighting vice president . . .
. . .
“The Marcus Center lighting will require no maintenance for 15 years,” Mr. Gregory said. “That’s a dream for a lighting designer.”
But he does not expect standard bulbs to disappear totally. Just as the invention of the light bulb did not completely kill the candle and kerosene lamp markets, Mr. Gregory said, “there will always be a need for incandescent bulbs. They will never totally go away.”
“The way an incandescent bulb plays on the face on a Broadway makeup mirror,” he said, “you can never duplicate that.”

For the full story, see:
ERIC A. TAUB. “Fans of L.E.D.’s Say This Bulb’s Time Has Come.” The New York Times (Mon., July 28, 2008): C3.
(Note: ellipses added.)

The reference to the Nordhaus paper is:
Nordhaus, William D. “Do Real-Output and Real-Wage Measures Capture Reality? The History of Light Suggests Not.” In The Economics of New Goods, edited by Robert J. Gordon and Timothy F. Bresnahan, Chicago: University of Chicago Press for National Bureau of Economic Research, 1997, pp. 29-66.

LEDsNewYearsBallFullSpectrum.jpg “The full spectrum of color, design and programming available for the Times Square ball.” Source of the caption and photo: online version of the NYT article quoted and cited above.