Will Masters

Thank you Ben! ...and anyone can play with our classroom exercise mentioned in the first sentence of the Boston Globe / STAT article, recently published in Journal of Economic Education:

MAHA says its new food pyramid is affordable and healthy. We asked experts How affordable are the new dietary guidelines? Economists and nutrition experts weigh in.

Great analysis and resource on food prices resource from
@willmasters.bsky.social @tuftsnutrition.bsky.social.

As with many things MAHA, a mixed bag.

Via @sarah-todd.bsky.social @statnews.com

Heartiest of congratulations to @willmasters.bsky.social, whose work on food & ag I value very much.

William A. Masters has been awarded the 2026 Georg and Greta Borgström Prize for Global Food Security 🏆

His work brings economics, agriculture, and nutrition together to make healthy diets more affordable worldwide.

🔗 Read more: https://bit.ly/4jWQpre

Thank you Tamar -- and likewise!

Environmental impacts and monetary costs of healthy diets worldwide - Nature Food Identifying low-cost options for a healthy diet is an essential step towards allowing all people to meet their nutritional needs. This study measures the frontiers of the lowest available cost and gre...

Yan Bai, Elena Martinez, Anna Herforth, @willmasters.bsky.social (at @tuftsnutrition.bsky.social) and others have an insightful article with information-dense graphics in Nature Food this week, comparing low-cost to climate-friendly food options internationally. www.nature.com/articles/s43...

Webinar: What We Lose as USDA Household Food Security Reporting Ends - World Food Policy Center Overview On November, 20, 2025, Duke’s World Food Policy Center hosted an in-depth webinar on a major policy shift by the US Department of Agriculture:…

The nicely annotated recording of the webinar on Nov 20 with Prof. Norbert Wilson of Duke University @dukewfpc.bsky.social, about the recent end of the USDA nationally representative household food security survey, now has been posted. wfpc.sanford.duke.edu/webinar-what...

Sure but be careful what you wish for -- the ends may not justify the means

Progress unmoored - Works in Progress Magazine Airports and cities may face delays and rising costs, but cruise ships keep breaking records. They show what can still be built.

...and here's another angle on how cruise ship companies have overcome the constraints of life on shore

Mise en masse How do you prepare 100,000 meals at sea?

Want to see a circular bioeconomy, with minimal food waste and max energy recycling?

I learned a lot from this amazing story about ruthless efficiency in pursuit of customer service:

E286: How 'least cost diet' models fuel food security policy - World Food Policy Center Governments use something called a ‘least cost diet’ to monitor food access, inform policy discussions, and target interventions to improve food security and nutrition. So, what is the least cost diet...

My colleague @willmasters.bsky.social and I had a nice conversation with Norbert Wilson at @dukewfpc.bsky.social about least cost diets in the United States and internationally, with implications for understanding SNAP in the US and world hunger. wfpc.sanford.duke.edu/podcasts/how...

Almost three billion people cannot afford a healthy diet A healthy, nutritious diet is much more expensive than a calorie sufficient one.

Thanks to Pablo Rosado of @ourworldindata.org for a clear, vivid explanation of what #FoodPricesForNutrition metrics reveal about healthy diet costs and affordability.

The original data are posted at www.fao.org/faostat/en/#... & worldbank.org/foodpricesfo..., from sites.tufts.edu/foodpricesfo...

Trends in Diet Quality Among U.S. Adults From 1999 to 2020 by Race, Ethnicity, and Socioeconomic Disadvantage | Annals of Internal Medicine Background: Few data have assessed trends in diet quality among U.S. adults. Objective: To evaluate trends in diet quality by race, ethnicity, and socioeconomic disadvantage. Design: Repeated cross-se...

Yes that's true - but veg intake is poorly measured, and when prices change there's a lot of substitution among items of different quality. For diet recall, Dary's analysis of NHANES data has time trends to 2020, and the USDA loss-adjusted data is even more granular
www.ers.usda.gov/data-product...

Winter is coming. So are tariff-induced price hikes on tomatoes and other produce. - The Boston Globe A rise in produce prices could be a sign of higher costs to come as President Trump’s tariffs on imported food become more significant.

Having low price, high quality tomatoes depends not only on imports in winter, but also immigrant labor, new technology and market competition. It's the tomato theory of everything!

Thx to @camilo-fonseca.bsky.social for clear reporting on how tariffs limit our access to imported sunshine.

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FRED Graph FRED Graph

For a decade Americans have benefited from a downward trend in the real cost of tomatoes (in red), even more than all fruits & veg (in green), compared to all groceries (in black).

Each is shown controlling for overall inflation, from FRED with updates here: fred.stlouisfed.org/graph/?g=1MNZ7
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Winter is coming. So are tariff-induced price hikes on tomatoes and other produce. - The Boston Globe A rise in produce prices could be a sign of higher costs to come as President Trump’s tariffs on imported food become more significant.

The tomato theory of everything

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Food Intelligence by Julia Belluz, Kevin Hall, PhD: 9780593332306 | PenguinRandomHouse.com: Books “Food Intelligence dispels many popular myths we have about weight loss and breaks down the real drivers of the obesity crisis based on decades of research. I really hope everyone gets a chance to...

Just finished the superb new book from @juliabelluz.bsky.social and @kevinh-phd.bsky.social.

Crystal clear storytelling about the new science of nutrition, summarizing what we learn at top schools like @tuftsnutrition.bsky.social.

It's a timely antidote to snake oil & vibes--highly recommended!

Exclusive | Trump Administration Cancels Annual Hunger Survey The government has been measuring food insecurity since the mid-1990s but now says the report has become “overly politicized.”

The U.S. food security data to be cancelled by Trump's USDA has been of huge value but is often misunderstood -- and the WSJ piece breaking the news is exceptionally clear about what's at stake

The (mis)use of Google Trends data in the social sciences - A systematic review, critique, and recommendations Researchers increasingly use aggregated search data from Google Trends to study a wide range of phenomena. Although this new data source possesses som…

PS, academic footnote for those interested in the use (and misuse) of Google trends data, a nice article from @floriankeusch.bsky.social and coauthors here:

Chart of Google trends data on the rise and fall of online searches for "vegan" in contrast to "organic" and "vegetarian"

The rise and fall of progressive idealism, as tracked by online search for vegan (vs. organic or vegetarian).

These data are global, you can click to see differences in timing and relative magnitudes here:
trends.google.com/trends/explo...

I'll call this the "Henry Vance Index" of idealism.

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Why the vegans lost Veganism didn’t become less good for us or the planet, so what changed?

Great piece from @henrymance.ft.com on a surprising way in which people have turned away from idealism: fewer online searches for "vegan".

Data in the next post...
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Screenshot of AJCN article

Slide of data showing higher CO2-equivalent emissions from more expensive options within major food groups

Slide of data showing varied or no correlation between retail price and nutritional profile score of widely sold items within major food groups

Big new paper shows limits to the common belief that healthy & sustainable foods are more expensive than other options.

Details: linkedin.com/posts/wamast...
Article:
doi.org/10.1016/j.aj...
Preprint: sites.tufts.edu/foodpricesfo...

From @tuftsnutrition.bsky.social, for #foodsky #econsky #foodecon

It looks like healthy adults under 65 in the U.S. might be barred from getting the updated Covid vaccine for this fall. Here's the latest from my niece Nina Masters' Know Your Vax substack, in response to the story below from Caitlin Rivers @cmyeaton.bsky.social

Marion Nestle just posted a useful roundup of links about the leaked draft MAHA report here:
www.foodpolitics.com/2025/08/http...
So far MAHA is playing out somewhat like Italy's right-wing gastronationalism, which distracts food activists with symbolic stuff so as to give industry gets a free hand.

Selfie with two men on a sailboat on Boston Harbor, with the Boston skyline in the background.

Sailing on Boston Harbor on a breezy summer afternoon with @willmasters.bsky.social, practicing dropping and raising the anchor, and, for conversation, in our imagination, solving global food systems challenges.

Are tariffs to blame for nearly 40% spike in wholesale vegetable prices? Experts weigh in The wholesale-price spike may eventually hike prices for shoppers, experts said.

As ABC News @max-zahn.bsky.social reports, producer prices for vegetables jumped nearly 40% in one month.

Tariffs? Supply hiccups due to immigration crackdown on farm laborers? Weather? Or random noise?

Let's monitor vegetable prices in the next two months to see.

abcnews.go.com/Business/tar...

Remember all of the “food prices are too high” social media posts from 2024?

Grocery price inflation is higher now than it was then

Why are wholesale vegetable prices spiking, and what's that mean for consumers? About a quarter of the 3.3% price increase recorded by this month’s producer price index was driven by a spike in wholesale prices for veggies.

Wholesale prices came in hot in today’s PPI report, but veggies stole the show 🥦📈

Vegetable prices at the wholesale level surged nearly 39% in July. @willmasters.bsky.social & I unpack what’s behind this spike in today's @marketplace.org 🎙️

www.marketplace.org/story/2025/0...

Yes indeed, and this page explains how to get the password: sites.tufts.edu/foodeconomic.... Should be quick and helpful to join the elist, and passwords should protect the files from appearing in search and AI training content.

For university courses about #FoodEconomics, a full set of class slides, weekly exercises, & exams is now available for use with the free online textbook from @afinaret.bsky.social and me. Audience is advanced undergrads and first-year grad students using graphical diagrams, examples and global data