Used-car prices just saw their biggest monthly price increase in at least 68 years, UBS estimates

• Used cars are the latest product seeing a record price increase from a supply shortage.
• Researchers at UBS found that used-car prices may have shot up by 8.2% to 9.3% in April.
• UBS estimates that's the largest monthly price increase in 68 years of tracking used cars.
• See more stories on Insider's business page.

The latest commodity seeing a price squeeze amidst shortages and high demand is used cars.

A note from UBS researchers led by Alan Detmeister found that not only did used-car prices climb in April, but the monthly price increase could be the largest in 68 years of tracking. It looks like prices may have risen by 8.2% to 9.3%.

Used cars have been in high demand due to a few of the factors driving the shortages all over the American economy. The economy is reopening, people are ready to spend money (perhaps from new stimulus checks), and they want cars – especially as more suburban areas boom with wealthy transplants. But new cars are being hit by a computer chip shortage that's hitting the automotive industry hard.

As Insider's Grace Kay reported, semiconductor shortages could cost automakers billions, and has already led to lower production rates for new cars. Even Elon Musk has said that Tesla's suffered from supply chain and semiconductor woes. Cue a used-car boom, with the market heating up and trade-ins fetching higher prices.

According to UBS, prices on used cars may only climb in the coming months, due to a lag in wholesale to retail pricing. New car prices are also likely to pick up, increasing by 1%.

Why there are so many shortages, and which ones may pick up next

It may seem that everywhere you look, a new product is in a shortage. Chicken, diapers, corn, gas, furniture: The list of shortages goes on, and will likely only grow amid economic reopening. That's due to some of the same factors impacting used and new cars. Supply-chain issues have persisted throughout the pandemic, and factories shuttered for safety reasons need to crank back to life as demand steepens.

Read more: The processor shortage that made the PlayStation 5 and some cars harder to find was almost over - until a ship got stuck in the Suez Canal. Here's why it's likely to get even worse.

The climate crisis also has a role, with several domestic products in the US - such as plastic and gas - impacted by factors including the devastating winter storms in Texas. Droughts are impacting the worldwide corn supply amidst high demand; Insider's Will Daniel reports that corn prices have jumped 142% in the past year.

UBS projects 12-month headline Consumer Price Index (CPI) inflation rising to 4.3% from 2.6%, "an enormous surge over just the past few months." Economists' median estimate for April CPI is 3.6%, per Bloomberg.

UBS projects hotels and airfares will be next to see substantial price increases. Axios reported - in an article aptly titled "Our crazy, booked-up summer" - that summer travel in the US is about to boom, with a particular emphasis on domestic travel.

A recent report from the US Travel Association found 72% of Americans are planning a summer vacation in 2021; that's compared to 37% last year. That probably won't help the already intense rental car shortage.