Negative Interest Rates

A negative interest rate means you pay to lend money instead of earning interest. If you deposit $100 in a bank account yielding −0.5%, you would have $99.50 a year later. A negative-yielding bond means you pay the issuer for the privilege of lending them money. This sounds absurd—why lend money for less than you started with?—but it happened in parts of Europe, Japan, and Switzerland after 2014. Central banks deliberately pushed rates below zero to force investors into riskier assets, discourage cash hoarding, and stimulate borrowing and spending. Negative rates are a sign of economic distress: ultra-low growth, deflation fears, or both.

Why central banks go negative

Under normal monetary policy, a central bank like the Federal Reserve lowers the federal funds rate to stimulate the economy during recessions. But rates have a floor at zero—if you drop rates below zero, savers and investors can simply hold cash and earn 0%, avoiding the negative return. So conventional wisdom said negative rates were impossible. But starting in 2014, the European Central Bank lowered the interest-on-excess-reserves rate (the rate it pays banks) below zero to punish banks for parking reserves at the central bank and force them to lend instead. Japan followed suit, and by 2022, several European countries had negative yields on government bonds.

The logic and the pain

The logic is: negative rates make cash holdings painful, pushing investors toward riskier assets and encouraging lending. If your bank account earns −0.5%, you might be more willing to buy a corporate bond yielding 1% or invest in equities that you expect to appreciate. A company facing negative rates has less reason to hoard cash and more incentive to invest or return capital to shareholders. In theory, this forces money into the real economy. In practice, negative rates cause distortions: savers are penalized, life insurance and pension funds struggle to meet long-term promises, and banks’ net interest margins (the spread between deposit rates and lending rates) compress, hurting profitability.

Countries that used negative rates

• Japan: The Bank of Japan adopted negative rates in 2016 to escape decades of deflation and stagnation.
• European Central Bank: Implemented negative deposit rates in 2014 and drove longer-term yields negative during the sovereign debt crisis.
• Switzerland: The Swiss National Bank used negative rates from 2014 onward to prevent franc appreciation as investors fled to the safe-haven currency.
• Denmark, Sweden, Norway: Nordic central banks also experimented with negative rates.
• United States: The Federal Reserve kept the federal funds rate at zero from 2008–2015 and 2020–2022 but never went negative. The zero lower bound remains a constraint in U.S. policy.

The zero lower bound revisited

The existence of negative rates in multiple countries showed that the “zero lower bound”—the assumption that interest rates cannot go below zero—is actually a policy choice, not a physical law. Governments can make cash expensive to hold or restrict large cash withdrawals, allowing rates to go negative. However, the political and practical costs (savers angry, unintended distortions) mean most central banks still treat zero as the effective floor.

Effects on bond markets

When government bond yields go negative, investors are literally paying to lend to the government. A 10-year German Bund yielded around −0.5% in 2021, meaning a buyer paid the German government to lend them money. This is not rational unless: (1) you expect rates to fall further (and the bond’s price to appreciate), (2) you need a safe asset for regulatory or liquidity reasons, or (3) you believe this is the least-bad option in a horrible environment. Negative-yielding bonds create strange incentives—investors are willing to accept negative returns because the alternative (holding cash and paying banks a negative deposit rate) is worse.

Negative rates and savers

Negative interest rates are regressive: they hurt savers and retirees living on fixed incomes. A 70-year-old with $500,000 in savings expects to earn modest income from bank deposits or conservative bonds. Negative rates force her to either (1) accept negative returns, (2) take on more risk by investing in stocks or high-yield bonds, or (3) hold physical cash (losing the spread between bank rates and zero due to storage costs). This was politically contentious in Europe and Japan, where aging populations have substantial savings.

Exit from negative rates

Most central banks that adopted negative rates have since exited or plan to exit. The ECB raised rates back to positive territory in 2023. Japan, facing persistent economic challenges and inflation concerns, has also begun to normalize. The Federal Reserve, which never adopted negative rates officially (though quantitative easing pushed long-term yields negative), raised rates sharply in 2022–2023 to combat inflation. Negative rates are a policy of desperation, and no one wants to stay there longer than necessary.

Debate over effectiveness

Economists disagree on whether negative rates were effective. Supporters point out that negative-rate countries did eventually recover from deflation and recession (though recovery was slow). Critics argue that negative rates distorted financial markets, harmed savers unfairly, and did little to boost real investment or growth. The experience suggests negative rates are a tool of last resort, to be deployed only in the most dire circumstances (deflation, zero-bound constraint, and persistent demand collapse).