A pizza oven tells the tariff story so far

Plus: The work of robot sculptors
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President Donald Trump continues to roil segments of the market as he wages his trade war, with the latest being a plan for 50% tariffs on copper. For those of us who aren't metals traders, Shawn Donnan takes a look at how import duties are affecting costs closer to home. Plus: The creamy marble of Carrara now carved by robots and the Elon, Inc. podcast on Musk's third-party ambitions.

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You probably heard that President Donald Trump has been sending out letters this week to countries, including big-time economies like Japan and South Korea and relative minnows like Bosnia-Herzegovina and Moldova, warning them that tariffs on their exports to the US will go up on Aug. 1 if they don't reach a deal with his administration. Together with an executive order Trump signed Monday, the letters put off what would've otherwise been a drastic increase in duties today as a 90-day pause he announced on April 9 expired.

To be honest, though, I've been thinking just as much recently about another notice that landed in my inbox. It set up a clash between my day job writing about the economy and tariffs and my aspirations as a backyard dad and cook. It also says a lot about the US economy and the delayed impact of tariffs.

For a few years I've had a hankering for an outdoor pizza oven. It's gotten a little out of hand. I've spent way too long on social media investigating small gas-fired portable ovens and more luxurious ready-made wood ovens. This summer I vowed to finally make the leap. By Labor Day I want to be firing up pies on my patio.

One example of a backyard pizza oven. Photographer: JGA/Shutterstock

Which is where the email that landed on July 2—from Denny Bruce, the chief executive officer of premium pizza-oven maker Gozney—comes in. "Starting August 1st, 2025, we will be making some necessary price adjustments due to continued global tariff increases that have significantly raised the cost of producing and importing our ovens," it began, ominously. The $100 increases Bruce laid out on two models of ovens that now cost $699.99 and $899.99 are pretty steep, at more than 14% for the cheaper of the two.

The pitch also feels a little heavy on marketing spin. "At Gozney, we're committed to delivering the highest quality ovens while continuing to support innovation, craftsmanship, and the customer experience you deserve. These changes will help ensure we can keep doing exactly that," Bruce wrote.

I'm still debating which oven to go with. There are cheaper options available from competitors such as Ooni and Solo, though Gozney does make a handsome oven. Wirecutter called its top model "ultraluxe," which feels like a descriptor better suited to a handbag or a suit but kind of spoke to me.

Bruce's email also gelled with something I've been hearing from a lot of businesses. They've been holding off on increasing prices for as long as they can, but they're running out of time and their tariff costs are mounting. Which means consumers are about to feel the pain.

Trump and his economic advisers have insisted for months that other countries will pay the tariffs, and they've dismissed all the companies and economists who say otherwise. Lots of US businesses big and small that have been receiving tariff bills would beg to differ. But so far at least those new costs haven't shown up for consumers.

The 90-day pause that Trump extended on Monday hasn't been tariff-free. There's been a 10% tax on most US imports and those from China face tariffs of 30% to 55% depending on what you're importing. Cars face separate 25% duties. Steel and aluminum tariffs are higher still at 50%.

And yet the consumer price index hasn't shown any dramatic signs of rising prices. Federal Reserve researchers in May said they'd detected a 0.3% increase in core goods prices because of this year's new duties. But that's modest, and once services are considered the overall effect was just a 0.1% increase in consumer prices, the Fed economists noted. That's hardly the sort of inflation that's going to cause Americans to storm the ramparts.

We're starting to see evidence that tariffs are hitting the economy in other ways. Lift the hood, and the jobs numbers for June showed signs of weakness. Consumer spending was down in May. It also feels like an easy bet to say tariffs are going to go up soon. That's certainly what Trump is promising. So the effects will intensify in the weeks to come.

Just how American consumers will digest it all is a trickier question. I've still got my eye on a pizza oven. I'm just not sure I'm going to pull the trigger before Aug. 1. Between you and me, I'm starting to wonder if building my own would be a fun late summer project. Especially if I can persuade my kids to help.

In Brief

Fine Art Sculpture Is a Big Robot Business

Giacomo Massari at a Robotor carving studio in Carrera. Photographer: Alecio Ferrari for Bloomberg Businessweek

Sai Baba lay on his back in the cold sunlight on the mountain, his expression untroubled by the four-and-a-half-ton steel robot drilling at his head. The machine buzzed away in a mist of water and atomized stone. Its arm could move up and down and in and out. It could twist, tilt and spin its tool. Altogether it could work along nine axes—an impressive range of motion. Through the glass walls of the factory behind me, I saw other robots toiling, but this was the one Giacomo Massari had brought me up to look at.

Sai Baba was an Indian sage who died in 1918 and is still revered today. The followers who were paying Massari $600,000 to carve his likeness wanted something big. They were getting it. It had taken Massari's team a month to locate the 100-ton block of top-grade marble needed for the job and another month to define the block with diamond saws, coax it from the surrounding rock, and get it to the robot without breaking it. When finished, Massari said, the 15-ton statue would be the biggest robot-carved sculpture ever. It would take the machine four months.

"At that point it will be 95% done," Massari said. "The final 5% will be the hand-finishing.

"How long for that?"

He shrugged. "Three months?"

We stood there contemplating the robot. Back and forth and back and forth went the diamond-studded carving tool. It never paused. It never took a break. By contrast the hand-finishers would stop for lunch and bathroom breaks and insist on halting work altogether at the end of the day. Maybe even go home and sleep. Humans, what can you say.

Two studio owners whose clients include Jeff Koons and Maya Lin dominate robot-chiseled art. One is spending big to preserve the human touch. Matthew Hart introduces us to: The Robot Sculptors of Italy

On the Latest Elon, Inc. Podcast

Photo illustration by 731. Photos: NASA (1), Getty Images (7)

On this week's episode of Elon, Inc., host David Papadopoulos invites Bloomberg political reporter Nancy Cook and Businessweek's Max Chafkin to the studio to discuss Elon Musk's latest idea: the creation of the "America Party." Third parties have famously been losing propositions in American politics, and Cook questions whether the distractible multibillionaire even has the patience to handle the paperwork required to register with the Federal Election Commission.

For that and more on the latest gyrations in Telsa stock, listen and subscribe to the podcast on Apple, Spotify, iHeart and the Bloomberg Terminal.

A Tech Giant Gets Bigger

$4 Trillion
The market valuation of Nvidia Corp. surpassed that level Wednesday morning, cementing its status as a kingpin in the global financial market. The stock has risen more than 20% in 2025 and is up more than 1,000% since the beginning of 2023.

Trump vs. Harvard

"We tried to do things the easy way with Harvard. Now, through their refusal to cooperate, we have to do things the hard way."
Tricia McLaughlin
Assistant secretary at the Department of Homeland Security
The Trump administration is intensifying its fight against Harvard University, warning that the school's accreditation may be in danger and formally moving to subpoena it in a bid for information on foreign students.

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