Complex formulas and stacked duty rates—how companies calculate what to pay.

For countries that don't face a flat 10% tariff, the Trump administration's recent levies follow a basic formula—and one that ...

Few economic innovations have been as transformative to worldwide standards of living than vibrant international trade. Trump ...

Remote territories like Heard Island and McDonald Islands, home to penguins but no humans, weren't spared from President Trump's sweeping tariff list last week.

Brent Neiman, a University of Chicago economics professor, predicted in a New York Times op-ed that President Trump’s ...

An economist Donald Trump cited in calculations for his extra-high global tariffs says that the president should get an F- in math.

How on earth did it calculate such huge rates?” wrote University of Chicago economics professor Brent Neiman in an op-ed that ...

My first question, when the White House unveiled its tariff regime, was, “How on earth did they calculate such huge rates?” ...

CNN anchor Erin Burnett was forced to bring out a schoolroom prop to prove a huge mistake the Trump administration made when ...

consistently produced the reciprocal tariff percentages revealed by the White House across the board. Just figured out where these fake tariff rates come from. They didn't actually calculate ...

Trump’s promised global tariffs on everyone take effect. Even penguins on uninhabited islands are in his cross-hairs.