Global Market: European central bankers leave Jackson Hole uneasy over US policy shifts

Agencies European central bankers worry over rising US policy uncertainty.

Synopsis European central bankers left the Jackson Hole symposium concerned that recent US Treasury interventions could strain long-standing norms of global financial cooperation.

Unannounced yen intervention, Treasury bond buybacks and uncertainty over Fed dollar swap lines have raised concerns about Washington’s growing role in global financial markets.

By Anupam Nagar, ETMarkets.com Aug 31, 2026, 02:59:00 PM IST Follow us European central bankers left the annual Jackson Hole gathering of global policymakers with concerns that established norms of international financial cooperation could face increasing strain, as uncertainty grows over the relationship between the United States and its allies, Reuters reported.ADVERTISEMENT Federal Reserve policymakers sought to reassure their European counterparts during the gathering, emphasising their commitment to existing international arrangements.

However, Fed officials could not provide assurances that U.S.

President Donald Trump would not introduce abrupt policy changes, given the separation between the central bank and the administration.More than half a dozen officials familiar with discussions on the sidelines of the Kansas City Federal Reserve's annual economic symposium said recent U.S.

Treasury interventions had heightened concerns among European policymakers.

In particular, the Treasury's intervention to support the Japanese yen and its efforts to reduce longer-term U.S. borrowing costs have raised questions about whether Washington may increasingly depart from established policy norms.

A U.S. official said the intervention was intended to counter disorderly movements in the yen and support stability in global financial markets.ADVERTISEMENT ADVERTISEMENT Treasury bond buybacks raise further questionsEuropean central bankers were also concerned about Bessent's plans to increase buybacks of longer-dated U.S. government bonds.

Such operations could potentially be financed through greater issuance of shorter-term debt.ADVERTISEMENT The officials viewed the move as another indication that the administration is prepared to take unconventional steps to influence borrowing costs.The concern is particularly significant because longer-term Treasury yields are determined largely by market forces and monetary policy remains under the independent authority of the Federal Reserve.ADVERTISEMENT A U.S.

Treasury official said the expanded buybacks were designed to improve liquidity in longer-dated Treasury markets and were not intended as monetary policy or as an effort to impose a ceiling on interest rates.However, Treasury officials have also indicated that bringing down elevated long-term yields is an important objective for the department, adding to concerns among some European policymakers about the administration's growing involvement in financial markets.Concerns over Fed swap linesEuropean officials also raised concerns about the future of the Federal Reserve's dollar swap lines with major overseas central banks.The facilities are viewed as an important pillar of global financial stability because they provide foreign central banks with access to U.S. dollars during periods of market stress.

This helps ensure that banks outside the United States can continue meeting dollar funding requirements without being forced into disruptive asset sales.Officials said there was currently no indication that the swap arrangements were at risk and expected them to continue unchanged.The swap lines are authorised by the Federal Open Market Committee and operated by the Federal Reserve rather than the U.S. administration.

Treasury officials also stressed that recent actions involving the yen and Treasury buybacks had no implications for the Fed's authority over such facilities.Nevertheless, European policymakers remain concerned that political pressure on U.S. institutions could eventually extend into areas traditionally insulated from administration policy.Warsh seeks to reassure European counterpartsFed Chair Kevin Warsh, who travelled to Europe shortly after taking office, has sought to strengthen relations with European policymakers and has generally made a positive impression, according to the officials cited by Reuters.His first appearance as Fed chair at Jackson Hole also included the customary photograph with Bank of Canada Governor Tiff Macklem.