Why do so many terrorists have engineering degrees?

Thursday, January 7th, 2010

Why do so many terrorists have engineering degrees?

Engineering is not a profession most people associate with religion. The concrete trade of buildings and bridges seems grounded in the secular principles of science. But the failed attack this Christmas by mechanical engineer Umar Farouk Abdulmutallab was a reminder that the combination has a long history of producing violent radicals.

The anecdotal evidence has always been strong. The mastermind of the 9/11 attacks, Mohamed Atta, was an architectural engineer. Khalid Sheikh Mohamed got his degree in mechanical engineering. Two of the three founders of Lashkar-e-Taibi, the group believed to be behind the Mumbai attacks, were professors at the University of Engineering and Technology in Lahore.

A paper released this summer by two sociologists, Diego Gambetta and Steffen Hertog, adds empirical evidence to this observation. The pair looked at more than 400 radical Islamic terrorists from more than 30 nations in the Middle East and Africa born mostly between the 1950s and 1970s. Earlier studies had shown that terrorists tend to be wealthier and better-educated than their countrymen, but Gambetta and Hertog found that engineers, in particular, were three to four times more likely to become violent terrorists than their peers in finance, medicine or the sciences. The next most radicalizing graduate degree, in a distant second, was Islamic Studies.

So what’s with all the terrorist-engineers? The simple explanation is that engineering happens to be an especially popular field of study in the countries that produce violent radicals. But Gambetta and Hertog corrected for national enrollment numbers in engineering programs and got similar results. Even among Islamic terrorists born or raised in the West, nearly 60 percent had engineering backgrounds.

Another possible explanation would be that engineers possess technical skills and architectural know-how that makes them attractive recruits for terrorist organizations. But the recent study found that engineers are just as likely to hold leadership roles within these organizations as they are to be working hands-on with explosives. In any case, their technical expertise may not be that useful, since most of the methods employed in terrorist attacks are rudimentary. It’s true that eight of the 25 hijackers on 9/11 were engineers, but it was their experience with box cutters and flight school, not fancy degrees, that counted in the end.

Gambetta and Hertog propose that a lack of appropriate jobs in their home countries may have radicalized some engineers in Arab countries. The graduates they studied came of age at a time when a degree from a competitive technical program was supposed to provide a guarantee of high-status employment. But the promises of modernization and development were often stymied by repression and corruption, and many young engineers in the 1980s were left jobless and frustrated. One exception was Saudi Arabia, where engineers had little trouble finding work in an ever-expanding economy. As it happens, Saudi Arabia is also the only Arab state where the study found that engineers are not disproportionately represented in the radical movement.

What else might account for the radical, violent politics of so many former engineering students? Is there some set of traits that makes engineers more likely to participate in acts of terrorism? To answer this question, Gambetta and Hertog updated a study that was first published in 1972, when a pair of researchers named Seymour Lipset and Carl Ladd surveyed the ideological bent of their fellow American academics. According to the original paper, engineers described themselves as “strongly conservative” and “deeply religious” more often than professors in any other field. Gambetta and Hertog repeated this analysis for data gathered in 1984, so it might better match up with their terrorist sample. They found similar results, with 46 percent of the (male American) engineers describing themselves as both conservative and religious, compared with 22 percent of scientists.

Gambetta and Hertog write about a particular mind-set among engineers that disdains ambiguity and compromise. They might be more passionate about bringing order to their society and see the rigid, religious law put forward in radical Islam as the best way of achieving those goals.

Fiddy’s Machiavelli

Thursday, January 7th, 2010

Curzon is shocked to recommend The 50th Law:

At first glance, the book looks like a practical joke or an act of tremendous chutzpah. The cover is made of imitation leather, embossed with gold lettering in a thick Gothic font, sporting pages that are edged with gold like a Holy Bible found in a church pew. The book is unreal in its confidence — co-authors Robert Greene and 50 Cent review the lessons taught by history’s great thinkers and leaders — Sun Tzu, Machiavelli, Napoleon, Lincoln, Clausewitz, Franklin Delano Roosevelt, and many more — and then apply those lessons… to the life of 50 Cent! Can you think of anything more audacious?


The book opens with Robert Greene, who has authored books that are somewhat like the self-help version of Robert D. Kaplan’s Warrior Politics, explaining how Greene met 50 Cent in 2007 and was enthralled that, despite having no academic education, he instinctively understood the laws of power that Greene had been trying to teach in his books such as The 48 Laws of Power. He then tells how he spent a year with 50 Cent, witnessing him in action as he ran his music business and career as a performer, and wrote the book using the inspiration of 50 Cent’s career success, concluding that the famous rapper has something extra, a panache that Greene did not cover in his book on the 48 laws — fearlessness.

That is the key theme of the book — the dehabilitating nature of fear and the importance of overcoming it in order to succeed. Fearlessness allow a person to take advantages of opportunities and rise to challenges by taking initiative. It’s hard — fear is the most primitive and basic human emotion — but as Greene wrote in his blog post:

The truth is that a fearless approach is the necessary starting point of almost any successful or creative action in this world. The 50th is in fact the ultimate law of power, the key to the castle.

Greene met and spent time with 50 Cent well before the rapper’s success as one of the richest hip-hop artists was recognized by Forbes magazine and his financial success became open public knowledge.

I am almost shocked to find myself writing that I strong recommend this book. Greene trumpets the values of realism and dismisses idealism, praises the benefits of adversity, the importance of innovation over tradition, and the book really does have the readability of Robert D. Kaplan’s writings and quickly draw you in to believing the material. Like Kaplan, it applies the laws of the ancients to very modern situations that make the material easy to grasp and understand. It is also jaw-droppingly audacious — Greene writes that, “Fifty could serve as my Cesare Borgia, and I as his Machiavelli.”

The problem with fearlessness is that some get rich, and some die tryin’.

It is a long way from Science to the Federal Register

Thursday, January 7th, 2010

It is a long way from Science to the Federal Register, Mencius Moldbug says, but not as far as many think:

Think of this leg of the decision process — from hockey stick to cap-n-trade — as a slow, arduous, but essentially automatic mechanism, like colonic peristalsis. The various political glands in the pipeline, including Public Opinion Itself, can exert resistance, but not insert independent input. They are brakes, but not motors. They can stall the process, but not stop it, and certainly not turn the wheel and do something else instead.

The Art of Golf Course Architecture

Wednesday, January 6th, 2010

Golf course architecture is one of the world’s most expansive but least recognized art forms, Steve Sailer claims:

Yet this curiously obscure profession can help shed light on mainstream art, sociology, and even human nature itself, since the golf designer, more than any other artist, tries to reproduce the primeval human vision of an earthly paradise.

What is that primeval human vision of an earthly paradise?

Research since the early 80s shows that humans tend to have two favorite landscapes. One is wherever they lived during their adolescence, but the nearly universal favorite among children before they imprint upon their local look is grassy parkland, and that fondness survives into adulthood.

Richard Conniff wrote in Discover: “In separate surveys, Ulrich, Orians, and others have found that people respond strongly to landscapes with open, grassy vegetation, scattered stands of branchy trees, water, changes in elevation, winding trails, and brightly lit clearings…”

In one amusing study, 1001 people from 15 different countries were surveyed about what they’d like to see in a painting. Then the sponsors of the research, conceptual art pranksters Komar and Melamid, painted each country’s “Most Wanted Painting.” Even though the researchers hadn’t mentioned what type of picture it should be, the consensus in 13 of the 15 cultures favored landscapes and 11 of the 15 looked surprisingly like golf courses.

All over the world, people want to see grassland, a lake, and some trees, but not a solid forest. And they always want to see it slightly from above. The project was intended to satirize popular taste, but it ended up revealing much about about human desires.

So golf courses look like happy hunting grounds, where one might expect to find tasty hoofed animals — with a touch of something dangerous:

The distinction Edmund Burke made in 1757 between the “sublime” and the “beautiful” applies to golf courses. The beautiful is some pleasing place conducive to human habitat — meadows, valleys, slow moving streams, grassland intermingled with copses of trees, the whole English country estate shtick. The sublime is nature so magnificent that it induces the feeling of terror because it could kill you, such as by you falling off a mountain or into a gorge.

Beautiful landscapes are most suited for building golf courses, since a golf course needs at least 100 acres of land level enough for a golf ball to come to rest upon. But golfers get a thrill out of the mock sublime, where you are in danger of losing not your life, but your mis-hit golf ball into a water hazard or ravine. One reason that Pebble Beach on the Monterey Peninsula is so legendary is because it combines sublime sea cliffs with beautiful (and thus functional for golf) rolling plains (My father, though, almost walked off the cliff in the middle of the eighth fairway at Pebble Beach and into the wave-carved chasm, which probably would have satisfied Burke’s theoretical rigor.)

Nation-State or Multi-Ethnic Society

Wednesday, January 6th, 2010

The United States is not so much a nation-state as a multi-ethnic society, Robert Kaplan says:

Because America is a multi-ethnic society, the nation-state has always been more fragile here than it is in more homogeneous societies like Germany and Japan. James Kurth, in an article published in The National Interest in 1992, explains that whereas nation-state societies tend to be built around a mass-conscription army and a standardized public school system, “multicultural regimes” feature a high-tech, all-volunteer army (and, I would add, private schools that teach competing values), operating in a culture in which the international media and entertainment industry has more influence than the “national political class.”

In other words, a nation-state is a place where everyone has been educated along similar lines, where people take their cue from national leaders, and where everyone (every male, at least) has gone through the crucible of military service, making patriotism a simpler issue. Writing about his immigrant family in turn-of-the-century Chicago, Saul Bellow states, “The country took us over. It was a country then, not a collection of ‘cultures.’”

During the Second World War and the decade following it, the United States reached its apogee as a classic nation-state. During the 1960s, as is now clear, America began a slow but unmistakable process of transformation. The signs hardly need belaboring: racial polarity, educational dysfunction, social fragmentation of many and various kinds.

William Irwin Thompson, in Passages About Earth: An Exploration of the New Planetary Culture, writes, “The educational system that had worked on the Jews or the Irish could no longer work on the blacks; and when Jewish teachers in New York tried to take black children away from their parents exactly in the way they had been taken from theirs, they were shocked to encounter a violent affirmation of negritude.”

“Protocols” and Wealth Creation

Wednesday, January 6th, 2010

We used to make stuff, and now we make protocols, David Brooks recently claimed. But the 19th and 20th centuries were also “knowledge economies”, David Foster says:

The value of a Boulton & Watt steam engine was not in the “stuff” it was made out of (which could be purchased for a far lower amount than you would pay for the steam engine itself) but rather for the design knowledge contributed by James Watt and the manufacturing process knowledge (protocol knowledge) contributed by Matthew Boulton..and for innumerable additions to that knowledge base by their employees. To take a more recent example, the early 20th century assembly line as implemented by Henry Ford, and the kinds of precise work planning and industrial engineering developed by Taylor and the Gilbreths, certainly represent “protocols” just as much as do Wal-Mart’s supply-chain management procedures.

One could argue that a “protocol” in the form of pure software has no variable cost, unlike a physical product. But in reality, the software is only usable when it is incarnated into a physical device such as a computer. And many of the highest-value forms of software are in fact sold only as an embedded part of a physical device: iPhones, aircraft autopilots, and CNC machine tools, for example. And Wal-Mart obtains financial value from its supply-chain management expertise only when the results of that expertise are sold in the form of “stuff.”

The most important “protocols” are the ones that nudge “stationary bandits” — that is, politicians — toward the least destructive means of collecting economic rents — or getting their cut.

We will fight in the shade

Wednesday, January 6th, 2010

Younghusband shares an official PowerPoint slide on how to win in Afghanistan — and adds this:

I haven’t seen that many arrows since Agincourt.

Prohibition: A Cautionary Tale

Wednesday, January 6th, 2010

Prohibition should remind us, Thomas Fleming says, that Congress, scientists and economists seized by the noble desire to achieve some great moral goal may be abysmally wrong:

Today most people think Prohibition was fueled by puritanical Protestants who believed drinking alcohol was a sin. But the vocal minority who made Prohibition law believed they were marching in the footsteps of the abolitionists who sponsored a civil war to end another moral evil—slavery.

At least as important was the belief that Prohibition would produce health and wealth. Yale economist Irving Fisher, the best-known economist in the nation in the early 20th century, predicted that a ban on alcohol would guarantee a 20% rise in industrial productivity. He cited “scientific” tests that proved alcohol diminished a worker’s efficiency by as much as 30%. [...] His book, How to Live: Rules for Healthful Living Based on Modern Science, was a best seller.

Fleming presents a timeline:

The weapon of choice was the local option law by which a majority of voters could ban alcohol from a town, county or state. By 1900, 37 states had these laws and the machinery of petitions, letters, telegrams, parades and mass meetings was worked out. More than 20,000 Anti-Saloon League (ASL) speakers were preaching Prohibition in church halls and other public platforms around the country.

Soon whole states had banned alcohol. In 1907, Oklahoma entered the Union with a dry Constitution. In 1913, Congress passed a law banning the shipment of “intoxicating liquor of any kind” into dry states, making it impossible for individuals to buy a bottle of whiskey without travelling quite a distance to get it. Angry citizens and liquor industry spokesman appealed to the courts.

The outbreak of World War I in 1914 enabled the ASL and its ally, the Woman’s Christian Temperance Union, to go national. In 1914 and 1916, federal elections created Congresses in which “drys” outnumbered “wets” by 2-1. Many leading Americans such as ex-President Theodore Roosevelt urged the United States to side with England and France against Germany. The ASL shrewdly supported preparedness. They argued an alcohol-free America would be far better able to defend itself against the threat of German militarism.

In April 1917, President Woodrow Wilson went before Congress and called for a war to make the world safe for democracy. In the same month, the Supreme Court upheld the constitutionality of the 1913 law banning the shipment of alcohol into dry states. The ASL said the two events constituted a sign from God and used it to turn more states dry.

On May 17, 1917, Congress forbade the sale of liquor to all men in uniform. The drys promptly launched a new slogan: “Shall the many have food or the few drink?” Congress, worried about feeding 100 million Americans and our hungry allies, responded with a ban on the use of grain to make alcohol.

On Dec. 22, 1917, Congress passed the 18th Amendment, turning the whole nation dry — if and when two-thirds of the states ratified it. The ASL unleashed its 20,000 orators on the German Americans, with their numerous brewers a chief target. The drys repeatedly linked liquor to disloyalty and even treason. Beer drinking was a sign of sympathy for the German Kaiser and his army of “Huns.”

The ratification process moved slowly at first. By the fall of 1918, only 14 states had approved the 18th Amendment. To speed things up, the drys in Congress tacked a rider on a vital agricultural appropriation bill, establishing national Prohibition as of July 1, 1919.

In the White House, President Wilson’s Irish-American adviser, Joseph Tumulty, urged Wilson to veto the bill. Tumulty warned it would alienate millions of ethnic Democrats in the big cities in the upcoming midterm elections. Tumulty called the Dry rider “mob legislation pure and simple.” But Wilson conferred with other members of his cabinet, who recommended signing it. Wilson had been re-elected in 1916 by a heavy percentage of dry states. The president signed the bill and, as Tumulty predicted, outraged Irish and German Americans voted Republican and the Democrats lost Congress.

The political change was bad news for President Wilson and his dream of negotiating a “peace without victory.” But the drys still had a majority in Congress. Emboldened, they now passed the Volstead Act, which spelled out the language of the 18th Amendment in minute detail. The bill banned all drinks that contained more than 0.5 percent of alcohol, making wine and beer also illegal, and empowered local police and state and federal agents to arrest and imprison anyone who broke the law. President Wilson thought this was much too drastic and vetoed the bill. The House and Senate easily overrode the veto, without any serious debate. The Volstead Act destroyed the liquor industry, the seventh-largest business in the U.S. and tens of thousands of people lost their jobs.

Prohibition naturally bred contempt for the law and put a lot of money into criminal hands.

Don Boudreaux explains why Prohibition really got repealed:

What happened in 1930 that suddenly gave the repeal movement political muscle? The answer is the Great Depression and the ravages that it inflicted on federal income-tax revenues.

Prior to the creation in 1913 of the national income tax, about a third of Uncle Sam’s annual revenue came from liquor taxes. (The bulk of Uncle Sam’s revenues came from customs duties.) Not so after 1913. Especially after the income tax surprised politicians during World War I with its incredible ability to rake in tax revenue, the importance of liquor taxation fell precipitously.

By 1920, the income tax supplied two-thirds of Uncle Sam’s revenues and nine times more revenue than was then supplied by liquor taxes and customs duties combined. In research that I did with University of Michigan law professor Adam Pritchard, we found that bulging income-tax revenues made it possible for Congress finally to give in to the decades-old movement for alcohol prohibition.

Before the income tax, Congress effectively ignored such calls because to prohibit alcohol sales then would have hit Congress hard in the place it guards most zealously: its purse. But once a new and much more intoxicating source of revenue was discovered, the cost to politicians of pandering to the puritans and other anti-liquor lobbies dramatically fell.

Prohibition was launched.

Despite pleas throughout the 1920s by journalist H.L. Mencken and a tiny handful of other sensible people to end Prohibition, Congress gave no hint that it would repeal this folly. Prohibition appeared to be here to stay — until income-tax revenues nose-dived in the early 1930s.

Feathered Dinosaurs Were Venomous Predators

Wednesday, January 6th, 2010

Feathered dinosaurs weren’t simply feathered like birds — they were also venomous like rear-fanged snakes and lizards:

Analysis of skulls belonging to different species of Sinornithosaurus, a group of feathered predatory theropods that lived 125 million years ago in what is now northeast China, shows skeletal features reminiscent of modern rear-fanged snakes and lizards.

Sinornithosaurus‘ rear teeth were long, with grooves connected to ducts running under their fangs to a pocket that could have housed a venom gland. “These features are all analogous to the venomous morphology of lizards,” wrote paleontologists in a paper published Monday in the Proceedings of the National Academy of Sciences.

The researchers speculate that Sinornithosaurus‘ long teeth could have penetrated the feathers of its avian prey, penetrating just far enough to release their poison. Like most modern rear-fanged reptiles, the venom probably wasn’t lethal, but instead shocked prey into immobility.

Short front teeth were probably used “to pluck the feathers off their victims,” wrote the researchers, who suggest that other members of Sinornithosaurus‘ family, including the velociraptors of Jurassic Park fame, had the same venomous capabilities.

White Telephone Movies

Tuesday, January 5th, 2010

Depression-era movies about rich people, like Philadelphia Story, are known as white telephone movies, Steve Sailer says, because only millionaires could finagle a non-black telephone out of the Bell monopoly back then:

Perhaps the contemporary equivalents made by Nancy Meyer (writer director of the aptly named What Women Want with Mel Gibson) could be called Viking range movies because they are heavy on high-end kitchen appliance porn.

Pakistan’s Problem

Tuesday, January 5th, 2010

Pakistan’s problem, Robert Kaplan says, is that the country makes no geographic or demographic sense:

It was founded as a homeland for the Muslims of the subcontinent, yet there are more subcontinental Muslims outside Pakistan than within it. Like Yugoslavia, Pakistan is a patchwork of ethnic groups, increasingly in violent conflict with one another. While the Western media gushes over the fact that the country has a woman Prime Minister, Benazir Bhutto, Karachi is becoming a subcontinental version of Lagos. In eight visits to Pakistan, I have never gotten a sense of a cohesive national identity. With as much as 65 percent of its land dependent on intensive irrigation, with wide-scale deforestation, and with a yearly population growth of 2.7 percent (which ensures that the amount of cultivated land per rural inhabitant will plummet), Pakistan is becoming a more and more desperate place. As irrigation in the Indus River basin intensifies to serve two growing populations, Muslim-Hindu strife over falling water tables may be unavoidable.

That’s from Kaplan’s 1994 Atlantic piece, The Coming Anarchy.

Lessons from Byzantium

Tuesday, January 5th, 2010

Edward Luttwak’s new book argues that we could learn some lessons from Byzantium, a poor and weak empire that nonetheless lasted almost a millennium longer than it richer, more powerful Western Ancestor, Rome:

The Byzantines continuously relied on deterrence – any power confronting other powers must do so continuously, if only tacitly – and they routinely paid off their enemies. But they did much more than that, using all possible tools of persuasion to recruit allies, fragment hostile alliances, subvert unfriendly rulers, and in the case of the Magyars, even divert entire migrating nations from their path.

For the Romans of the Republic and the undivided empire, as for most great powers until modern days, military force was the primary tool of statecraft, with persuasion a secondary complement. For the Byzantine Empire it was mostly the other way around. Indeed, that shift of emphasis from force to diplomacy is one way of differentiating Rome from Byzantium, between the end of Late Roman history in the east, and the beginning of Byzantine history.

This difference in approach led the Byzantines to rely on cavalry rather than heavy infantry:

For the Romans, who believed in destroying enemies not wise enough to recognize the advantages of submission, the cutting and thrusting and besieging heavy infantry was the most important arm, because it could best achieve decisive results. By contrast… the Byzantines believed in containing but not destroying their enemies – potentially tomorrow’s allies. Therefore for them the cavalry was the most important arm because its engagements did not have to be decisive, but could instead end with a quick withdrawal, or a cautious pursuit that would leave both sides not too badly damaged.

What can America learn from Byzantium? NerveAgent summarizes:

America is neither Rome nor Byzantium; it has the military strength to annihilate its enemies utterly, but it is unable to exercise that power because of its own legalistic moralism, its fear of contravening international norms of state behavior, the opposition of other major powers in the system, and the irregular nature of most of its enemies. Yet it continues to proclaim maximalist objectives (e.g. the eradication of terrorism) while abiding by the constraints that prevent it from reaching those objectives, gradually exhausting itself in a vain pursuit of final victory and the End of History. If America should learn one thing from Byzantium, it is that war is eternal; to exert strenuously against a particular enemy is only to hasten decline, for a new enemy is always on the horizon.

(Hat tip to Joseph Fouché.)

Studying Young Minds, and How to Teach Them

Tuesday, January 5th, 2010

Researchers are now studying young minds and how to teach them — the kind of thing you might naively expect a school of education to study — and they’ve found that pre-schoolers can learn math much earlier than they’d assumed:

In a typical preschool class, children do very little math. They may practice counting, and occasionally look at books about numbers, but that is about it. Many classes devote mere minutes a day to math instruction or no time at all, recent studies have found — far less than most children can handle, and not nearly enough to prepare those who, deprived of math-related games at home, quickly fall behind in kindergarten.

“Once that happens, it can be very hard to catch up,” said Julie Sarama, a researcher in the graduate school of education at the University at Buffalo who, with her colleague and husband, Doug Clements, a professor in the same department, developed a program called Building Blocks to enrich early math education.

“They decide they’re no good at math — ‘I’m not a math person,’ they say — and pretty soon the school agrees, the parents agree,” Dr. Clements said.

“Everyone agrees.”

Notice the amusing assumption that children “deprived of math-related games at home” fall behind because of that deprivation. I’m sure those children are otherwise identical to the children playing math games at home. Right?

Movie stars tend to emerge from tumultuous upbringings

Monday, January 4th, 2010

Movie stars tend to emerge from tumultuous upbringings, Steve Sailer says:

For example, I don’t know how many current stars spent a couple of years living in hippie communes as children. [Meryl] Streep, in contrast, has always seemed like the supremely professional product of a proper upbringing. This perhaps made her less sympathetic when she was young in a sort of Jack Nicklaus-Peyton Manning way, but she’s enjoying the benefits of an improbably long career today.

Conspicuously Costly Signals

Monday, January 4th, 2010

People respond differently to the whole notion of conspicuous consumption, Geoffrey Miller says:

Some folks consider it blindingly obvious that most economic behaviour is driven by status seeking, social signalling and sexual solicitation. These include most Marxists, marketers, working-class fundamentalists and divorced women. Other folks consider this an outrageously cynical view, and argue that most consumption is for individual pleasure (“utility”) and family prosperity (“security”). Those folks include most capitalists, economists, upper-class fundamentalists, and soon-to-be-divorced men.

So Miller and colleagues devised some studies based on costly signalling theory — the idea that animals, including humans, use costly, intricate and hard-to-fake signals to flaunt their biological fitness to potential mates and social partners:

In the first experiment the team, led by Vladas Griskevicius from Arizona State University in Tempe and Josh Tybur from the University of New Mexico in Albuquerque, invited college students to the lab in small groups. Each was randomly assigned to one of two conditions: “mating” or “non-mating”. The mating subjects looked at three photographs of people of the opposite-sex on a computer screen, picked which one they thought most desirable, and spent a few minutes writing about an ideal first date with that person. The non-mating subjects looked at a street scene photograph and spent the same amount of time writing about the ideal weather for walking around and looking at the buildings it featured.

Then, all subjects were asked to imagine that they had a modest windfall of money, such as a lottery win of a few thousand dollars, and must choose how much they wanted to spend on a variety of conspicuous luxuries — such as a new watch, European vacation or new car — and how much they would save in a bank account. They were then asked to imagine that they had some extra time available per week, and were asked to choose how many hours they would spend volunteering — such as working at a homeless shelter or helping at a children’s hospital.

The results were dramatic: men in the mating condition said they would spend much more money than men in the non-mating condition — for example, they might take the European vacation rather than saving that money — but there was no mating effect on women’s consumption decisions. On the other hand, women in the mating condition said they would spend much more time volunteering than women in the non-mating condition. There was no mating effect on men’s volunteering. This study confirmed that conspicuous consumption (for men) and conspicuous charity (for women) can be increased by thinking about mating opportunities, and so can function strategically as a form of mating display.

Read the whole thing.