The supply of autos is one such example.

New as well as used vehicles have been in short supply throughout the pandemic, at times forcing consumers to wait as long as a year for the most popular models.

In early 2020, when the pandemic put most Americans in lockdown, carmakers began to anticipate a fall in demand, so they significantly scaled back production. This sent a signal to suppliers, especially of computer chips, that they would need to find different buyers for their products.

Computer chips aren’t one size fits all; they are designed differently depending on their end use. So chipmakers began making fewer chips intended for use in cars and trucks and more for computers and smart refrigerators.

So when demand for vehicles suddenly returned in early 2021, carmakers were unable to secure enough chips to ramp up production. Production last year was down about 13% from 2019 levels. Since then, chipmakers have began to produce more car-specific chips, and Congress even passed a law to beef up U.S. manufacturing of semiconductors. Some carmakers, such as Ford and General Motors, have decided to sell incomplete cars, without chips and the special features they power like touchscreens, to relieve delays.

But shortages remain. You could chalk this up to poor planning, but it’s also the bullwhip effect in action.

And this is a problem for a heck of a lot of goods and parts, especially if they, like semiconductors, come from Asia.

In fact, pretty much everything Americans get from Asia – about 40% of all U.S. imports – could be affected by the bullwhip effect.

Most of this stuff travels to the U.S. by container ships, the cheapest means of transportation. That means goods must typically spend a week or longer traversing the Pacific Ocean.

The bullwhip effect comes in when a disruption in the information flow from customer to supplier happens.

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