Quantitative Easing and Its Aftermath: The Long Shadow Over Financial Markets

Between 2008 and 2022, the Federal Reserve, European Central Bank, Bank of Japan, and Bank of England collectively expanded their balance sheets by approximately $25 trillion through quantitative easing — purchasing government bonds and other assets in exchange for newly created central bank reserves. The purpose was to stimulate economies and prevent deflation during the global financial crisis and subsequent periods of economic weakness.

The consequences of this extraordinary monetary experiment are still playing out. QE clearly succeeded in its immediate objectives: deflation was avoided, financial markets stabilised, and economic recoveries followed crises that could have been far more severe. But the side effects are now becoming apparent.

ASSET PRICE INFLATION

By suppressing risk-free interest rates to near zero for an extended period, QE forced investors seeking returns into progressively riskier assets. Equity valuations reached historically elevated levels. Real estate prices in major cities reached levels that priced out the majority of local residents. Alternative assets from private equity to art commanded prices that implied return expectations impossible to justify on fundamental analysis.

THE REVERSAL PROCESS

Quantitative tightening — the process of reducing central bank balance sheets — has proven significantly more complex than QE. The US Federal Reserve's balance sheet peaked at approximately $9 trillion in mid-2022 and has since been reduced to approximately $7 trillion, a modest decline relative to the total accumulated.

The challenge is that market functioning has adapted to the presence of abundant central bank liquidity in ways that make its removal disruptive. As reserves drain from the banking system, money market stress periodically emerges in forms that require temporary reversal of tightening.