Quantitative easing (QE) is a non-traditional monetary policy used by central banks to stimulate the economy when standard monetary policy has become ineffective. A key indicator that standard monetary policy measures may no longer be sufficient is when nominal interest rates approach zero and cannot be lowered further. When this occurs, central banks can engage in quantitative easing in an attempt to increase the supply of money in the wider economy and promote inflation. This paper aims to discuss quantitative easing in depth, including its mechanics, goals, effects, and debate surrounding its use.
The mechanics of quantitative easing involve a central bank buying assets, like government bonds, from commercial banks and other private institutions in order to increase the supply of money. By doing this, the central bank credits the selling private institution’s reserve account at the central bank, effectively increasing the bank’s reserves and deposit money. This is intended to encourage lending activity by commercial banks, as they have a larger reserve deposit on which to base new loans. Greater lending is expected to lower interest rates and increase the broad money supply. Quantitative easing works by targeting longer-term interest rates rather than short-term rates controlled through traditional open market operations. It involves central banks directly purchasing longer-term bonds and assets from banks and other institutions.
The overarching goals of quantitative easing are to stimulate lending and spending in the economy in order to combat deflation and boost economic growth. When interest rates have been cut to near-zero levels but the economy still requires additional monetary support, quantitative easing is meant to complement traditional monetary policy approaches. Specifically, quantitative easing aims to 1) lower long-term interest rates to encourage borrowing and investment, 2) increase the money supply in the banking system, which makes bank reserves more abundant and available for lending, 3) weaken the currency on foreign exchange markets to support exports and growth, and 4) raise inflation expectations and actual inflation rates back to target levels. Ultimately, the transmission channels of quantitative easing are meant to spur private sector demand and improve overall macroeconomic conditions.
In practice, major central banks like the U.S. Federal Reserve, Bank of England, Bank of Japan, and European Central Bank have engaged in multiple rounds of quantitative easing programs since 2008 in response to the global financial crisis and recession. For instance, between 2008-2014 the Fed undertook three large-scale asset purchase programs involving government bonds and mortgage-backed securities. Total purchases amounted to over $4 trillion as the Fed sought to cut borrowing costs and keep markets functioning normally. Empirical research on the effects of quantitative easing has produced mixed results. Studies generally find it was effective in lowering long-term yields and supporting asset prices like stocks. Evidence for a significant impact on broader monetary aggregates, bank lending, or general economic activity has been less conclusive.
Critics argue that quantitative easing primarily benefits asset owners rather than the wider economy. Some research suggests a lot of the money printed ended up profiting wealthy investors through boosted stock values rather than new business investment or jobs. There are also concerns about ‘financial repression’ as QE could undermine returns on safe assets like government bonds, influencing portfolio allocations. Others contend massive central bank balance sheet expansion poses financial stability risks in the long run or risks fuelling reckless lending and asset bubbles once the economy recovers. Supporters counter that without QE the crisis would have likely been deeper and deflationary pressures greater. Achieving the inflation target is also beneficial after a severe downturn to rights prices, wages and encourage spending.
The exit from quantitative easing is also a complex issue central banks have grappled with. As economic conditions improve, restoring normal monetary policy is important to preserve independence. Markets can become dependent on asset purchases, so any communication about tapering or ending QE risks sparking volatility. Selling large amounts of bonds acquired during QE back into markets also raises challenges for price discovery and stability. Some analysts argue central banks may need to permanently hold ‘helicopter money’ on their balance sheets, abandoning orthodox exit strategies entirely. Overall, there are persuasive arguments on both sides of the QE debate reflecting its unconventional nature and uncertainties regarding longer-term effects. Central banks will continue balancing pros and cons when deciding on usage in future crises.
Quantitative easing is one of the more controversial policy tools adopted by central banks to support economies during severe financial downturns. By directly intervening in bond and asset markets, it aims to cut borrowing costs, boost inflation, and encourage spending when short-term rates are stuck at zero bounds. Empirical research suggests it has achieved some objectives like lowering bond yields, but transmission into core goals of growth and inflation remains disputed. Risks from bloated balance sheets and inflated asset values are also a concern. Without its deployment deflationary forces may have prevailed after 2008. Debates about appropriate usage and exit strategies will persist due to QE’s experimental dimensions. Overall, central banks try weighing evidence on both pros and cons when considering this unconventional option during renewed crises.
Andrew Stroud