Treasury Secretary Scott Bessent appears to be heading down a path similar to Japan’s, and it signals “debasement” of the dollar, according to a top economist.

In a Substack post on Thursday, Robin Brooks, a senior fellow at the Brookings Institution and former chief economist at the Institute of International Finance, sounded the alarm on the Treasury Department’s plan to increase buybacks of long-term bonds.

The announcement came after the 30-year yield hit the highest level in nearly 20 years. While yields briefly retreated, they soon climbed back to their earlier levels as Wall Street doubted Bessent’s ability to hold back the $32 trillion Treasury market.

Brooks dismissed the buyback scheme as mere financial engineering that doesn’t address the mounting stress in the Treasury market. At the same time, it also confirmed there’s no desire to tackle the underlying problem of the deficit, which is on track to reach $2 trillion this fiscal year.

“When fiscal policy is out of control, governments can obviously do many things to cap yields, but this just puts depreciation pressure on the currency because markets don’t get paid the kind of risk premium they desire,” he wrote. “What would be a debt crisis thus morphs into a currency crisis, which is why the Yen has been falling for so many years.”