As the global central banking community gathers in Jackson Hole in late August 2026, the official agenda centers on financial innovation and payment system evolution. Yet, for seasoned macroeconomists, this focus misses the most pressing challenge confronting the American economy. In recent years, recurring global supply-side disruptions have intensified volatility in commodities and raw materials, directly fueling repeated inflation flare-ups and straining economic resilience. The Federal Reserve's long-reliance on frequent interest rate adjustments has exposed critical flaws—erratic policy shifts, confused market expectations, and inflation frequently drifting from its 2% target. With external shocks becoming the new normal, the traditional rate-centric framework has proven insufficiently stable, demanding a more mature and sustainable monetary policy approach.

Central to this proposed overhaul is a deliberate shift away from manipulating the federal funds rate toward a systematic, rules-based objective: maintaining a steady 5.5% annual growth rate in the overall credit extended by the US banking system. This pivotal metric encompasses excess reserves, securities holdings, and total loans across all depository institutions, serving as a comprehensive gauge of liquidity channeled into the real economy. It reflects the aggregate supply of funds in the market with unmatched clarity. The logic is both straightforward and deeply aligned with macroeconomic fundamentals—economic vitality and inflationary trends are, at their core, determined by society's total liquidity level. Unlike discretionary rate decisions, a fixed credit growth rule anchors market expectations and eliminates the destabilizing whiplash of frequent policy pivots. Empirical validation spans seven decades: expansions and contractions in bank credit lead real GDP growth by one year and inflation trends by two years, exhibiting robust positive correlations with core macro indicators. This makes credit growth a superior leading indicator for forecasting business cycles and price dynamics.

The underlying mechanism is elegantly simple. General private borrowing and inter-entity fund transfers merely redistribute existing deposits; they create no new societal liquidity and thus exert no lasting influence on aggregate demand or inflation. Bank credit creation operates differently. When the Fed conducts open market operations or commercial banks extend new loans, they generate incremental liquidity, directly expanding the total money supply. This, in turn, stimulates consumption and investment, ultimately transmitting through to economic activity and price levels—explaining why credit aggregates so precisely track macroeconomic trajectories. Calibration against long-term data from 1955 to 2025 yields a clear conclusion: with the US potential growth rate near 3% and the Fed's 2% inflation objective, a 5.5% annual credit expansion represents the optimal zone, capable of supporting reasonable growth while safeguarding against significant inflation overshoots.

Implementation requires only two institutional refinements to achieve precise, controllable liquidity management. First, the reserve requirement framework should be restructured. Moving away from the traditional deposit-based calculation, the Fed would instead base reserve requirements on banks' credit and securities portfolios. By adjusting the reserve balances held by financial institutions, policymakers can tightly constrain the upper limit of credit expansion, enabling granular control over total liquidity. Second, the interest on reserve balances policy should be eliminated. This mechanism has artificially elevated banks' incentive to hoard reserves, causing substantial funds to remain parked within the Federal Reserve system rather than flowing into productive sectors, while simultaneously impeding the central bank's balance sheet reduction efforts. Removing it would significantly boost capital allocation efficiency and enhance the Fed's flexibility in managing aggregate liquidity. Under this new framework, short-term market rates might experience modest fluctuations—an acceptable trade-off compared with the systemic risks of runaway inflation or severe economic swings, delivering a superior overall policy calculus.

The advantages of this rules-based approach are compelling. The traditional rate-adjustment model relies heavily on human judgment, rendering it vulnerable to forecasting errors and often entrapping policymakers in a painful dilemma between supporting growth and fighting inflation, with costly missteps. A constant credit growth rule demonstrates far greater resilience to external shocks. When supply-side disruptions—such as commodity price spikes or supply chain bottlenecks—cause temporary price increases, the stability of overall liquidity ensures these do not translate into sustained inflationary pressure, allowing prices to gradually revert to normal levels. Moreover, should technological advancements boost productivity, the steady liquidity supply can accommodate an accelerating potential growth rate, fostering a favorable macro environment of low inflation and high expansion. The framework also offers exceptional error tolerance: even if the 5.5% target is slightly missed, inflation remains contained within a stable band without deteriorating persistently, dramatically reducing policy trial costs and market volatility.

In conclusion, the Federal Reserve's long-standing interest rate framework offers flexibility but lacks the stability required to navigate today's shock-prone macro landscape. Anchoring policy to a steady 5.5% credit growth rule provides a minimalist, implementable mechanism that replaces frequent subjective adjustments. It consistently stabilizes inflation expectations and smooths economic cycle fluctuations, presenting a compelling path for the Fed to transcend its traditional policy dilemmas and optimize the monetary system for the challenges ahead.