In 2010, the New York City-based restaurant Serendipity 3 revealed its $69 hot dog, winning the Guinness World Record for the world's most expensive hot dog. Served on a toasted pretzel roll with truffle butter and covered in foie gras, the award-winning hot dog made the restaurant's $18 cheeseburger seem like a steal. That's the point, says Professor Damon Centola of the Annenberg School for Communication at the University of Pennsylvania.

Affective polarization—i.e., an aversion toward supporters of the opposing party—has been shaping American society for years, including when it comes to finding a partner. A new sociological study by Dr. Ansgar Hudde and Shannon Taflinger from the University of Cologne's Department of Sociology and Social Psychology dives deeper into this phenomenon, examining how political information on a dating profile influences the romantic interest of young Americans. The study was published under the title "Why do young U.S. Americans avoid cross-partisan dating? A closer look at mediators and variation by gender and party" in the journal European Sociological Review.

A Dartmouth College study is the first to map the interplay of personal choice and social networks that has led to the United States being one of the world's most heavily armed countries, with 120 firearms for every 100 people. The researchers describe in Science Advances how individual incentives to buy firearms can lead to a phenomenon they call "overarming." In an overarmed society, the collective cost of firearm ownership outweighs the individual benefits of possessing a gun.

States with restrictive abortion policies saw slower growth in the proportion of female medical school applicants following the 2022 reversal of Roe v. Wade, according to a new study published in the open-access journal PLOS Global Public Health by Amrit Kirpalani of Western University, Canada, and colleagues.

A major new study of more than 115,000 young people suggests teenage well-being may finally be recovering after years of concern over the long-term impact of the COVID-19 pandemic.

A new study suggests that, for modern Japanese speakers, two traditional, patriarchal words for "husband" ("shujin," literally meaning "master") and "wife" ("kanai," "inside-the-house") may be losing their original meanings, though men in the study evaluated both traditional and neutral words for "husband" more positively than words for "wife."

A new study by researchers at the University of Tokyo explores whether reading manga on paper or on a tablet changes how the brain understands and remembers stories. Participants first read the opening half of a two-part manga story either on paper or on a tablet. Later, while inside an MRI scanner, they read the second half through LCD goggles and answered questions about the story.

Ahead of major soccer tournaments, a research team led by Achim Zeileis of the University of Innsbruck and Andreas Groll of TU Dortmund University calculates the chances of winning for all participating teams. For the 2026 World Cup in Canada, Mexico, and the United States, their model identifies Spain as the slight favorite with 14.5%. Closely behind are England (12.4%), France (12.4%), and Germany (11.2%). Somewhat further back are Portugal (8.9%) and Argentina (8.2%), as well as the Netherlands (5.6%) and Brazil (4.7%). "Compared to previous tournaments, this year's title race is very tight," confirms Achim Zeileis.

The rapid emergence of generative AI in higher education has raised concerns about students' reliance on the use of these tools for academic and personal tasks. Although generative AI can boost productivity and creativity, key learning skills may be undermined by overreliance on it.

Big brands have built empires on slogans, declaring themselves the best among their competitors. These claims—glowing, subjective and impossible to verify—fall under what marketers call puffery. For decades, they've been treated as harmless fluff, waved through the court system on the assumption that consumers tune them out.

In American politics, cursing and "four-letter words" are no longer confined to hot mics or hidden behind closed doors. Politicians and pundits are increasingly using so-called "bad words" in speeches, social media posts and campaign ads. Benjamin Bergen, professor of cognitive science, and Pamela Ban, associate professor of political science, both from UC San Diego's School of Social Sciences, examine why swearing among politicians is on the rise and what it reveals about persuasion, emotion and modern public discourse.

Three-quarters of S&P 500 companies now tie a portion of their CEO's pay to environmental, social and governance (ESG) metrics. They typically include carbon emissions, workforce diversity and worker safety, among others.

If your child has ever dug their heels in on the morning of the school athletics or cross country day, or refused to speak in front of the class, you're not alone.

New research from the U.K. suggests that being exposed to old ideas that portray male sexual violence as having an evolutionary explanation—such as it being biological and inevitable—can lead people to be more likely to blame the victim in rape cases. The researchers showed more than 600 people videos of either an evolutionary explanation of male sexual aggression, a sociocultural explanation, or an unrelated control video. Those participants then read a scenario that, while meeting the legal definition of rape, contained ambiguities, and then were asked to judge who was the perpetrator and who was the victim.

The good news: When environmental rules pressure one company, the effect can spread through shared boardroom ties, leading connected firms to reduce emissions, too.

Although same-sex marriage has not been legalized nationally in Japan, various municipal governments have independently introduced partnership certification systems for same-sex couples.

As U.S. cities prepare to host the FIFA World Cup, familiar warnings about human trafficking "spikes" at major sporting events have reemerged.

Globally, about 1 in 5 people in jobs live in poverty. A key reason lies in how global supply chains are organized. From agriculture to tourism, many jobs are embedded in systems that keep wages low, even as they generate value for international markets.

Climate change is contributing to the escalation of existing local conflicts in Africa. A new WZB study by Ruud Koopmans, Daniel Meierrieks, and Daniel Tuki uses the example of pastoralist conflict between nomadic herders (mainly Muslim Fulani) and sedentary farmers in Nigeria to show how droughts triggered by climate change exacerbate existing religious conflicts.

Megalomaniacal leaders are fascinating. They exude boundless confidence, harbor sometimes excessive ambitions and make decisions that are often out of touch with reality.