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Eco-labels on menu options prompt diners to make more sustainable choices, research finds

A first-of-its-kind study has shown adding eco-friendly ratings on menu items results in diners making choices which are kinder to the environment.

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A first-of-its-kind study has shown adding eco-friendly ratings on menu items results in diners making choices which are kinder to the environment.

The research, led by the University of Bristol, found that providing a traffic light rating of eco-friendliness next to dishes on the menu significantly increased the likelihood of diners choosing more sustainable options.

Lead author Katie De-loyde, Research Associate in Psychological Science, said: “Adding a traffic light eco-label to menus increased the selection of more sustainable food items. Furthermore, and somewhat surprisingly, participants were positive about the eco-label, with a huge 90% of participants supporting the idea.

“Pending replication in real-world settings, our results suggest future policy could include mandatory eco-labelling, just like the health traffic light system, on food products as a way to promote more sustainable diets.”

The researchers asked participants whether they would order a burrito with a beef, chicken, or vegetarian filling. Each burrito was accompanied with a traffic light-style ranking of sustainability, with the vegetarian option being green indicating it was the most sustainable.

Findings showed five per cent more of the 1,399 adult participants went veggie when the eco-labels were included, while 17 per cent more went for vegetarian or chicken, the second most sustainable option.

Katie added: “The eco-label was particularly effective among those people who reported already being motivated to act sustainably. This suggests these kinds of labels help people make dietary decisions which are in line with their personal values.”

Eating meat and dairy products can have various adverse effects on the environment, largely owing to the huge amounts of methane, a harmful greenhouse gas, cows, pigs, and other farm animals release into the atmosphere.

More trees are cut down to convert land for crop growing, as around a third of all grain produced in the world is used to feed animals raised for human consumption. Overall, studies have shown that going vegetarian can reduce your carbon emissions from food by half, and going vegan can reduce this further.

The researchers wanted to discover if increasing an awareness of the impacts of different dishes would influence consumers to choose a more sustainable option, supporting the social ideal.

Three mock-ups of food delivery app menus were created, each showing the three burrito options with different accompanying information. All menus contained a photo of each item as well as the calorie content, a Fairtrade logo, a spice indicator and the price, which was the same for all options. But one mock-up also featured a ‘social nudge’ – an indicator encouraging people to act according to the most sustainable option. This resembled a gold star, including the words ‘Most Popular’ placed alongside the vegetarian burrito. 

In another mock-up, each burrito was given the eco-label, with the beef option scoring ‘5’ in red, highlighting it is unsustainable. The chicken option had a yellow ‘3’, indicating it was neither sustainable nor unsustainable, and the vegetarian option got a green ‘1’ for sustainable.

Participants were randomly shown one of the three menu mock-ups and asked to pick a burrito option, as if they were normally ordering food. They were also asked follow-up questions designed to measure their level of motivation to act sustainably.

The results, published in the journal Behavioural Public Policy, found a third of the participants who were given the ‘control’ menu – without a social nudge or eco-label – went for the beef burrito. However, this dropped to 29 per cent for those who had the social nudge menu, and to 16 per cent for those who had the eco-labelled menu. 

Findings showed only nine per cent would order a vegetarian burrito if they were given the control menu, but this increased to 13 per cent with the social nudge and 14 per cent with the eco-label. 

Co-author Dr Olivia Maynard, from the University of Bristol, said: “In 2020 the UK’s Committee on Climate Change advocated that beef consumption must be considerably reduced if the UK is to reach its net-zero greenhouse-gas emission target by 2050. Although further research on eco-labelling is essential, future policy may wish to consider a mandatory eco-label to help meet global climate change targets.”

Strategies

Online marketers, take note: Online viewers prefer livestreams to recordings

Watching an online performance in real time boosts several aspects of the viewing experience.

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In an era when most TikTok videos are prerecorded, can a band with a new single create a tighter bond with fans by debuting via livestream instead? Can a business do the same when promoting a new product?

New research from the McCombs School of Business at The University of Texas at Austin suggests they could.

Since the pandemic, the livestreaming industry has been booming. The global market is expected to reach $345 billion by 2030, up from $100 billion in 2024. Nearly 30% of internet users watch livestreams at least once a week on social media.

Adrian Ward, associate professor of marketing, is one of them. A few years ago, he was viewing a livestream of a town hall meeting and found himself gripped by a speaker’s comments, feeling as if he were actually in the room. On reflection, he suspected it was the liveness of the event, as much as the speaker, that kept him glued to the screen.

“As we spend more of our time online and on social media, it’s worth asking how we can feel as complete and connected as possible in these spaces,” Ward says.

Live and Let Stream

With Alixandra Barasch of the University of Colorado Boulder and Nofar Duani of the University of Southern California, Ward began to investigate what he calls the “mere liveness effect”: the idea that simply knowing an event is streaming in real time makes a viewer feel more connected to the performer.

The researchers ran five experiments with 3,500 total participants. By manipulating various factors, they compared how, when, and why viewers reacted to watching livestreams versus prerecorded videos online.

In one experiment, participants watched live or recorded videos of their choosing on the platform Twitch. In another, they viewed a performance by the R&B cover band Sunny and the Black Pack, either live on YouTube Live or its recording the next day on YouTube.

In a third, the researchers created their own streaming platform to show participants identical videos, manipulating whether the content appeared to be live or prerecorded.

The experiments provide evidence that watching an online performance in real time boosts several aspects of the viewing experience:

  • Connection. Viewers in one experiment felt 7 percentage points more connected to the performers in the live video. Another experiment showed the effect was even stronger when viewers believed no one else was watching.
  • Enjoyment. In another experiment, viewers enjoyed the live video 5 percentage points more than the prerecorded one.
  • Engagement. Real-time streams carried a “liveness lift.” Viewers chose to continue watching longer, and they were more willing to follow and subscribe to the live streamer’s channels.

A common factor underlying those effects was a heightened sense of presence, Ward says. “When we watch something live, we are psychologically transported there.

“It’s not that there’s actually something different about the video itself. It’s that we know that it’s live right now, and that breaks down barriers between our world and the world on the other side of the screen.”

Lessons for Liveness

One quality weakened the liveness effect: not being able to see a performer’s face. When viewers saw only a musician’s hands, they felt less connected, even though they were watching the same performance.

The findings have implications for marketers, platform developers, and content creators, Ward says. In an age when people increasingly meet their social needs online, going live can benefit streamers by motivating audience engagement.

As a follow-up, he’s working with a graduate student to study whether the liveness effect translates into greater brand trust or sales.

“From influencers to businesses, it’s about the experience of real people seeing other real people live and in the moment,” Ward says. “It makes you feel like you’re sharing something.”

The Liveness Lift: Viewing Live Streams Creates Connection and Enhances Engagement in Amateur Music Performances” is published in The Journal of Marketing.

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Strategies

Renting out your place? Human connection key to a successful holiday rental

Warmth, friendliness and a sense of belonging, or the “homely” side of the experience, strengthen guest loyalty, making them more likely to return to the same host. However, these feelings alone didn’t necessarily make guests more likely to recommend the property to others.

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Striking up a connection with the property host is the factor that drives repeat bookings on holiday accommodation platforms such as Airbnb.

This is according to a new study, carried out by universities in the UK and Iran and published in the February 2026 edition of International Journal of Hospitality Management, that suggested that quality and value of accommodation also play a part in guest satisfaction, but personal connection is key to people deciding to stay again.

The research analyzed hundreds of online guest reviews and conducted in-depth interviews to understand what shapes guests’ evaluations of their stays in what is known as “peer-to-peer accommodation”.

Conducted over six years, the study shows that guests assess their stays using emotional cues such as warmth, atmosphere, and aesthetics; and cognitive cues such as cleanliness, safety, and convenience.

The study found that warmth, friendliness and a sense of belonging, or the “homely” side of the experience, strengthen guest loyalty, making them more likely to return to the same host. However, these feelings alone didn’t necessarily make guests more likely to recommend the property to others.

In contrast, affective and intellectual experiences – the enjoyment and perceived value of the stay – were stronger predictors of recommendations and positive reviews.

The research also examined how the quality of booking websites, such as Airbnb’s platform, influences guest behaviour. Although the website didn’t change how guests felt about the property itself, a well-designed and trustworthy site directly boosted guest loyalty and word-of-mouth.

Co-author Nektarios Tzempelikos, Professor of Marketing at Anglia Ruskin University (ARU), said: “Guests think carefully about both emotional and practical aspects before booking. Hosts who focus only on one side – either charm or functionality – may be missing the bigger picture.

“Platforms like Airbnb thrive when they’re designed for trust. Guests return to sites that are clear, reliable and easy to use. But it’s not just about tech, it’s about people. The most memorable stays come from warmth, authenticity and genuine local connection.

“By encouraging friendly, personal communication between hosts and guests, and balancing smart technology with a human touch, platforms can create experiences that feel less transactional and more meaningful.”

The study was carried out by researchers from Brunel University, University of Bradford, Newcastle University, Anglia Ruskin University and the University of Tehran.

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BizNews

Wine sellers, pay attention: Women more likely to choose wine from female winemakers

Messages like “proudly made by a woman winemaker” increased women’s intentions of purchasing wines, particularly when the label’s artwork reinforced the point with feminine gender cues such as flowers. Women were also willing to pay higher prices for those wines.

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Promoting women’s ownership in wineries can boost sales among the largest group of wine consumers, who happen to be women.

Messages like “proudly made by a woman winemaker” increased women’s intentions of purchasing wines, particularly when the label’s artwork reinforced the point with feminine gender cues such as flowers. Women were also willing to pay higher prices for those wines, according to the research from Washington State University and Auburn University.

The findings are noteworthy because 59% of all wine purchases in the US are made by women, said Christina Chi, coauthor of the research and professor of hospitality business management at WSU’s Carson College of Business.

Wine is often considered a cultural product, where the winemaker’s identity plays a role in shaping the brand’s image, she said.

Women winemakers, however, are less likely than their male counterparts to include their names on bottle labels or draw attention to their gender. Their reluctance may stem from concerns about prejudice toward their products in the male-dominated wine industry, Chi said.

“Our findings suggest that women winemakers and winery owners can benefit by being more visible,” she said. “The research shows that they can disclose their ownership with confidence and leverage it as a marketing strategy.”

The possibilities include putting “women-made wine” statements on labels or packaging, and retail store displays featuring women-made wines.

Demi Deng, an assistant professor at Auburn who earned her doctorate at WSU, is the first author on the research published in International Journal of Hospitality Management. Ruiying Cai, an assistant professor of hospitality business management at WSU, also contributed.

The new findings build on earlier studies showing that women are more inclined to buy wine with feminine gender cues on the labels. The 2024 research – by Cai, Chi, Deng, and WSU Emeritus Professor Robert Harrington – received widespread publicity. Beverage trade journals carried the story, and women winemakers were enthusiastic about the findings.

“As researchers, we want our work not only to have societal impact, but to have practical significance for the wine industry,” Chi said. “From the response, we saw that women winemakers were following our research and were eager for additional studies about women wine consumers.”

More than 1,000 US women participated in the most recent research, which involved a three-part study.

First, the researchers replicated the 2024 findings about feminine cues on wine labels. Using a fictitious Columbia Valley red table wine, the women surveyed expressed higher intentions of purchasing the wine when the label’s artwork featured a bouquet of flowers versus a masculine portrait. They were also willing to pay $3.50 more per bottle – about $17.75 for wines with feminine labels compared to $14.25 for wines with masculine cues.

In the second phase of the study, a “woman-made wine” statement was added to marketing materials. Women consumers had even stronger purchase intentions for wines with both the statement and feminine artwork on labels, the research found.

In the final phase, photos of women winemakers were further added to the marketing materials. But women were less likely to buy feminine-label wines when the female winemakers were pictured. Rather than focusing on the “woman-made” messaging, consumers’ decisions may have been swayed by whether they related to the individual women portrayed in the photographs, researchers said.

The studies also tested the marketing strategies on wines with masculine labels. Adding a “woman-made” statement significantly increased their appeal to women consumers. And when female winemakers were pictured in the marketing materials, women were willing to pay $3 more per bottle for wines with masculine labels.  

Besides helping women winemakers market their products, Deng said she hopes the research will draw attention to women’s contributions to the industry. In the United States, about 18% of winemakers are women.  

Deng worked as a sommelier in New Zealand before she earned her doctorate. “I actually encountered a lot of women winemakers, but their names aren’t visible in the wine market,” she said.

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