Global Market: Fiscal dominance debate takes centre stage as government debt mounts

Rising borrowing costs for heavily indebted governments and increasing strains in sovereign bond markets are reviving a once-taboo question for investors and policymakers: whether central banks could eventually be called upon to help governments manage their growing debt burdens.

According to Reuters, the issue of so-called fiscal dominance is expected to be among the key topics discussed by Federal Reserve officials, economists and central bankers at the Fed's annual gathering in Jackson Hole, Wyoming, this week. The debate comes as governments across major economies face rising debt levels and higher interest costs.

What is fiscal dominance?

Fiscal dominance occurs when a government increasingly relies on its central bank to support its borrowing needs, particularly when it struggles to finance deficits through normal market channels.


Under such a scenario, a central bank could purchase government bonds or provide other forms of support to keep borrowing costs under control. The approach carries significant risks because excessive money creation can fuel inflation, weaken a currency and undermine confidence among domestic and foreign investors.

Central-bank independence is designed to prevent such pressure. By operating without direct political interference, monetary authorities can focus on controlling inflation and maintaining confidence in the currency and financial markets.

However, the sharp rise in government debt in recent years is prompting renewed discussion over where monetary policy should end, and fiscal policy should begin.

What happens when governments face market pressure?

In theory, a sharp rise in government borrowing costs should encourage policymakers to reduce spending, raise taxes or pursue a combination of both.

Such measures, however, can be politically difficult, particularly when governments are already facing weak economic conditions or pressure from voters.

Governments have historically resorted to other measures when conventional fiscal adjustments become difficult. These have included restrictions on capital flows, policies that encourage domestic investors to hold government debt and, in extreme cases, monetary financing.

Monetary financing involves creating money to help fund government deficits. While it has been associated with episodes of severe inflation, advanced economies have established restrictions to prevent governments from directly relying on central banks to finance spending.

Why is the debate emerging now?

Government debt has increased substantially since the 2008 global financial crisis and rose even more sharply during the COVID-19 pandemic.

The United States has recorded budget deficits above 4% of economic output every year since 2019, despite periods of sustained economic growth. Investors have so far continued to absorb large amounts of Treasury issuance, but signs of pressure have become increasingly visible.

Long-term Treasury yields have risen, increasing the government's cost of issuing debt. The U.S. Treasury has attempted to ease market pressures through buybacks of older securities, although its ability to intervene is limited compared with the Federal Reserve.

Treasury Secretary Scott Bessent has suggested the Fed consider expanding a lending facility for foreign central banks to help protect U.S. Treasury markets from volatility originating overseas.

Could central banks come under pressure?

The Federal Reserve, European Central Bank and Bank of Japan are formally independent institutions, reflecting the principle that monetary policy should not be dictated by governments seeking cheaper financing.

The question of central-bank independence could nevertheless become more prominent as debt burdens grow.

Fed Chair Kevin Warsh has previously been associated with concerns about the central bank's bond-buying policies and left the institution in 2010. Reuters reported that he has rejected speculation that he would be more willing than his predecessor Jerome Powell to accommodate political demands from President Donald Trump.

History shows that the distinction between monetary policy and government financing can become less clear during periods of financial stress.

The Federal Reserve's 2011 Operation Twist, for example, involved selling short-term Treasury securities while purchasing longer-dated bonds. The policy was designed to support the economy and employment while keeping inflation in check, but it also helped reduce longer-term borrowing costs for the U.S. government.

Japan provides another example. The Bank of Japan maintained a policy of controlling long-term bond yields for years, a strategy that helped contain financing costs for a government carrying one of the world's largest debt burdens.

The European Central Bank has also faced scrutiny over its bond-purchasing programmes and the extent to which they can influence government financing conditions.

What could happen next?

For now, fiscal dominance remains more a subject of debate than an established policy direction.

Some proposals that have resurfaced are particularly radical, including cancelling portions of government debt or writing off bonds held by central banks. Reuters reported that mainstream economists generally view such approaches as potentially damaging to investor confidence and, in the case of Europe, potentially inconsistent with existing rules.

History suggests that questions about central-bank independence become more intense when governments face severe economic or financial pressure.

During World War Two, the Federal Reserve effectively capped government bond yields to support wartime financing. That arrangement was ultimately ended by the 1951 Treasury-Federal Reserve Accord, which is widely regarded as a crucial step in restoring the Fed's independence.

With public debt now elevated across many major economies and borrowing costs becoming more important to government finances, the balance between fiscal needs and monetary independence is likely to remain a major issue for policymakers and investors.

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