Teaching macroeconomics: Why has the ECB introduced a negative interest rate?

Pretty gosh darn clear explanation.  Get that money working.  If you earn nothing (or negative return) then you are more likely to lend the funds to someone who is actually going to do something (start a restaurant, expand a cleaning business, build a new app).

Why has the ECB introduced a negative interest rate? The European Central Bank’s mandate is to ensure price stability by aiming for an inflation rate of below but close to 2% over the medium term. Like most central banks, the ECB influences inflation by setting interest rates. If the central bank wants to act against too high inflation, it generally increases interest rates, making it more expensive to borrow and more attractive to save. By contrast, if it wants to counter too low inflation, it reduces interest rates.Since euro area inflation is expected to remain considerably below 2% for a prolonged period, the ECB’s Governing Council has judged that it needs to lower interest rates. The ECB has three main interest rates on which it can act: the marginal lending facility for overnight lending to banks, the main refinancing operations and the deposit facility. The main refinancing rate is the rate at which banks can regularly borrow from the ECB while the deposit rate is the rate banks receive for funds parked at the central bank. All three rates have been lowered.To maintain a functioning money market in which commercial banks lend to each other, these rates cannot be too close to each other. Since the deposit rate was already at 0% and the refinancing rate at 0.25%, a cut in the refinancing rate to 0.15 % meant the deposit rate was lowered to − 0.10 % to maintain this corridor.The cut is part of a combination of measures designed to ensure price stability over the medium term, which is a necessary condition for sustainable growth in the euro area.Do I now have to pay my bank to keep my savings for me? What is the effect of this negative deposit rate on my savings? There will be no direct impact on your savings. Only banks that deposit money in certain accounts at the ECB have to pay. Commercial banks may of course choose to lower interest rates for savers. At the same time, though, consumers and businesses can borrow more cheaply and this helps stimulate economic recovery.In a market economy, the return on savings is determined by supply and demand. For example, low long-term interest rates are the result of low growth and an insufficient return on capital. The ECB’s interest rate decisions will in fact benefit savers in the end because they support growth and thus create a climate in which interest rates can gradually return to higher levels.But why punish savers and reward borrowers?A central bank’s core business is making it more or less attractive for households and businesses to save or borrow, but this is not done in the spirit of punishment or reward. By reducing interest rates and thus making it less attractive for people to save and more attractive to borrow, the central bank encourages people to spend money or invest. If, on the other hand, a central bank increases interest rates, the incentive shifts towards more saving and less spending in the aggregate, which can help cool an economy suffering from high inflation. This behaviour is not specific to the ECB; it applies to all central banks.Isn’t it possible for banks to avoid the negative deposit rate? For example, can’t they simply decide to hold more banknotes?If a bank holds more money than is required for the minimum reserves and if it is not willing to lend to other commercial banks, it has only two options: to hold the money on an account at the central bank or to hold it as cash. But holding cash is not cost-free either − not least since the bank needs a very safe storage facility to warehouse the banknotes. So it is unlikely that any bank would choose to do this. The more likely outcome is that banks either lend money to other banks or pay the negative deposit rate.

via ECB: Why has the ECB introduced a negative interest rate?.

About mkevane

Economist at Santa Clara University and Director of Friends of African Village Libraries.
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