Among men who pay for sex, the repeat customers tend to have the most enlightened attitudes toward women, according to an analysis of johns conducted by four economics professors. Drawing on a survey of 1,342 men arrested for solicitation in four Western U.S. cities, the authors found that men who frequent prostitutes tend to be slightly older and much better educated than the average American male, they have less sex but more partners, and (as you might expect) they have unhappier marriages. The authors split the johns into two categories: regular customers and “experimenters,” who claim to have been with a sex worker at most once before being arrested. Regulars are more likely to view going to prostitutes as a way to have sex without bothering with conventional relationships, and they claim to enjoy sexual variety and tend to be less interested in control during sex. Experimenters are more likely to view visits to prostitutes as a complement to stable relationships, and they tend to have more-negative views of both prostitutes and women in general. Overall, 74 percent reported that they always wear a condom (men with stable relationships were less likely to use protection, at least with prostitutes).
—“What Money Buys: Clients of Street Sex Workers in the U.S.,” Marina Della Giusta, Maria Laura Di Tommaso, Isilda Shima, and Steinar Strøm, Applied Economics
Computers can already beat you at chess; now it might be time to start letting them decide whether you should live or die. A paper by researchers at the National Institutes of Health suggests that the system for determining how to treat comatose patients might work better if the decision making fell to a computer program. Currently, if a patient has no living will, doctors in most states rely on the next of kin to guess what measures, if any, the patient would want taken. But studies show that your loved ones accurately predict your wishes only about 68 percent of the time, and the percentage doesn’t improve even when the patient has selected in advance which relative or friend should decide. The NIH researchers suggest that doctors could enter their patient’s circumstances and demographic characteristics into a program that runs comparisons with similar patients whose wishes are known: In the study, it predicted what an individual patient would want just as well as the patient’s next of kin. A doctor treating a comatose, 68-year-old, black, college-educated widower, for example, might be more likely to conform to the patient’s wishes by relying on the typical treatment preferences of older, black, college- educated widowers than by consulting the patient’s children.
—“How Should Treatment Decisions Be Made for Incapacitated Patients, and Why?” David I. Shalowitz, Elizabeth Garrett-Mayer, and David Wendler, PLoS Medicine
The recording industry can stop blaming sagging sales and profits on online pirates: They’re cheapskates who probably wouldn’t have bought the albums they downloaded, according to an economic analysis of file-sharing and album sales. The study’s authors focused on the impact of Germany on downloads and sales in the fall of 2002: A sixth of all U.S. downloads are from German sharers, and during German school holidays—when kids are at home, online, and sharing their collections—the supply of pirated music available to U.S. listeners balloons, making downloading quicker and easier for Americans. But the authors found that albums that debuted in the U.S. when German kids were on holiday sold just as well as albums that debuted when German kids were in school. (They estimate the maximum number of album sales lost to piracy each week at no more than 368 copies.) Declining to endorse or condemn music pirates, the authors nevertheless point out that the net effect of piracy seems to be beneficial: The recording industry loses little or no money, and millions of American and German tightwads get their music for free.
—“The Effect of File Sharing on Record Sales,” Felix Oberholzer-Gee and Koleman Strumpf, Journal of Political Economy (PDF)
In 1981, when Saddam Hussein was just months away from starting up a nuclear reactor, Israeli fighter planes destroyed Iraq’s nuclear-production facility at Osirak. Could a similar Israeli strike neutralize Iran’s atomic ambitions? A recent paper published in International Security assesses this possibility, and the authors conclude that Israeli air power remains an effective “counter-proliferation tool” that could be deployed successfully against Iran. They estimate that an Israeli strike force would be able to penetrate Iranian air defenses without suffering so much “attrition” that the mission would fail. They issued this finding, however, with several caveats. Iran learned from the strike on Osirak: The critical parts of its nuclear facilities are hardened, dispersed, and well concealed. An air attack couldn’t destroy the entire program; instead, Israeli planners would have to prioritize targets directly involved in bomb production. And the success of a strike would hinge on the reliability of intelligence—a great unknown in any analysis. Finally, the ramifications of any attack, successful or not, could make the military option unattractive. World opinion could swing against the attacker, as it did in the case of Osirak. Perhaps more important, Iran is in a position to retaliate by stepping up support for insurgents in Iraq and for Hezbollah in Lebanon.
—“Osirak Redux? Assessing Israeli Capabilities to Destroy Iranian Nuclear Facilities,” Whitney Raas and Austin Long, International Security