A weak dollar can help but also harm | AP News

The U.S. Dollar Index, which measures the greenback against other major currencies, logged its steepest six-month drop in more than 50 years in the first half of 2025. Though the decline hasn’t deepened, the dollar index is still about 10% lower than the start of Trump’s term.

A strong dollar makes imports cheaper and can help keep inflation in check. A weak one can increase prices on foreign goods but boost American exports.

Trump has suggested a strong dollar puts the U.S. at a disadvantage and that a weak dollar helps American industry. And as with most things with Trump, he’s been blunter in his messaging.

“You make a hell of a lot more money with a weaker dollar,” he said last year, one of a number of public statements showing his preference for seeing the dollar decline.

Trump isn’t alone in seeing benefits of a weaker buck.

In recent months, corporate earnings calls have been peppered with talk of how a weaker dollar has helped companies from Philip Morris to Coca-Cola, with executives pulling out C-suite phrases like “favorable currency impact” to note how the dip brought tailwinds outside the U.S. that added to bottom lines.

Currency values are constantly moving and, while the dollar’s recent fall is notable, it has reached lower levels at points in the presidencies of each of Trump’s predecessors, back through the creation of the Dollar Index in 1973, when Richard Nixon was at the helm.

Kenneth Rogoff, a Harvard University economist and former chief economist at the International Monetary Fund, says while “a lot of policies that Trump is doing are something of a cancer for the dollar,” he believes that it was destined to fall no matter who was in charge.

“The dollar had been on a 15-year bull run,” he said. “I would argue the dollar is still wildly overvalued, and over the next maybe five or six years, it might fall 15%.”

What does that mean for American consumers? Rogoff says commodity prices are likely to rise, particularly with the impact of the Iran war on fuel prices.

“They’re just going to go up,” he says, “no matter what the dollar’s at.”