In a wide-ranging interview, Stephen Miran, the chair of President Trump’s Council of Economic Advisers, said, “Volatility doesn’t necessarily mean anything greater for the long term.”

The first 100 days of the second Trump administration have been a whirlwind. And Stephen Miran, the chair of President Trump’s Council of Economic Advisers, has been at the center of what he calls “the volatility.” Trump has raised import taxes to levels not seen since the 1930s. And trade talks to roll them back — or not — are in flux, leaving the trajectory of the U.S. economy, consumer prices and global trade in limbo.

Miran, a Ph.D. economist trained at Harvard — who is renowned for floating the idea of a Mar-a-Lago Accord to “restructure the global trading system” — has been put in the position of explaining the president’s thinking and ultimate goals.

On Wednesday, just before the United States and Britain announced a

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