Fiscal policy can reach its limit just like monetary policy does. We experienced a taste of this in the aftermath of the Global Financial Crisis, observing what the limit of monetary policy would look like. Now, we are testing the limit of fiscal policy as the US fiscal deficit is projected to run at approximately 6% over the majority of this decade. The implications are profound, akin to when the interest rate hit zero.
What does it mean when fiscal policy hits a limit? In a developing economy, it means high fiscal deficits and rapidly rising government debt, usually accompanied by slow growth and credit rating downgrades. This leads to liquidity crises and currency selloffs, prompting the central bank to raise the interest rate to an elevated level, which then results in fiscal austerity and potentially a recession. However, the implications in the US are much more complicated due to US exceptionalism and dollar hegemony.
Economic Growth Implications
When fiscal policy hits its limit, increased fiscal deficits lead to higher long-term borrowing costs for both the government and the private sector. This crowds out private investment, offsetting the positive growth impact of higher fiscal spending. US economic growth could remain moderate to strong if US exceptionalism endures and investors are willing to continue funding the US government. In contrast, growth could materially weaken if US privilege diminishes.
Inflation Implications
Long-term inflation expectations have been well-anchored despite inflationary periods over the past few years, due to the Fed’s strong credibility. However, we cannot rule out upside surprises in inflation expectations if fiscal policy hits its limit. Financial repression could become the least resistant way to reduce the debt burden.
Inflation-linked bonds and commodities would benefit if such a surprise materializes, while most other assets would suffer.
Equity vs. Bond Implications
Public and private equities have performed well over the past three decades despite slowing US growth potential. The level of interest rates may be more important than the level of economic growth when it comes to equity performance. A low interest rate enables shareholders to leverage the company’s balance sheet and boost ROE, while interest rate declines lead to compression in equity earnings yields. An 80/20 portfolio outperformed a 60/40 portfolio in such an environment.
As long-term real interest rates return to a more normal (higher) level, bonds become more attractive again from a risk premium perspective. Intuitively, higher interest rates favor creditors over debtors (or shareholders who like to take on debt, such as private equity LBOs). Therefore, a 60/40 portfolio becomes more attractive compared to what it was ten years ago.
Both equities and bonds should underperform cash if stagflation occurs. However, that remains a low-risk event barring significant supply shocks.
Dollar Implications
This is probably the most difficult aspect to consider. If the troubles of the US economy due to the limits of US fiscal policy do not spill over to other economies, the dollar should weaken. However, if it leads to financial accidents and de-risking, the dollar should strengthen due to risk-off behavior.