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Tag: interest rates

  • How does the Central bank control inflation?

    You may have heard in the news in the last year, that the Fed has been raising the interest rate. In this post, I will be explaining which is the “interest rate” and how the central bank of the U.S. (the Federal Reserve) does that to control inflation.

    After Jan 2022, there has been a steady rise in prices of many items, esp. fuel, housing rent, and food prices. If you want to understand what inflation is and how it is calculated, you can read my detailed article on inflation here.

    Inflation always happens when there is more demand than supply and when there is an expectation of inflation to continue. Producers raise the price of the goods and services in demand, to make more profit from them.

    The central bank of a country (the Federal Reserve in the US) intervenes when inflation is out of control or is significantly high compared to the target level. As this blog mostly focuses on the US Federal Reserve monetary tools, I use the terms the Fed and central bank interchangeably. However, central banks in other countries also use similar monetary tools.

    Is inflation always bad?

    In the US and many advanced countries, the target average rate of inflation is around 2% every year. This little bit of inflation rate is considered desirable, as it helps borrowers pay off their debt. When there is some inflation, borrowers will have to pay slightly less in purchasing power terms because their money is now worth less to the lenders, exactly by the rate of inflation.

    Additionally, it also motivates people to spend their money on goods and services instead of holding on to them, as their money will lose its value next year by the rate of inflation. So, we get our normal production and consumption, and the economy continues to run smoothly.

    What are the two goals of a central bank and how does it achieve it?

    The central bank uses monetary policy to keep inflation low and promote maximum employment. By maximum employment, we mean the highest level of employment that an economy can sustain while maintaining a stable inflation rate. In the US, these goals are referred to as the Fed’s dual mandate.

    You may ask how the Fed achieves its dual goals. Essentially, the Fed uses its monetary policy tools to start a chain reaction in the economy, each causing one another. In the US, the Fed’s chief body for monetary policymaking is called the Federal Open Market Commission (FOMC). FOMC meets eight times a year and looks at data on current economic conditions, like what is going up and what is going down and how the economy is likely to do in the future based on the data. Based on that information the FOMC makes monetary policy decisions.

    When inflation is high for a long period and unemployment is at a very low level, we call it an overheating economy. The central banks try to raise the interest rates to slow down the overheating economy. This is called contractionary or tight monetary policy.

    Tools of Monetary Policy

    Now, let’s look at the tools the Fed can use to bring inflation down to the stable 2% average rate. This is done in two steps:

    First, the Federal Open Market Committee (FOMC) will raise the target range for the Federal funds rate. This is the rate at which commercial banks borrow and lend their excess reserves to each other overnight. This rate is not set by the Fed, instead, it is determined by the market forces of demand and supply between commercial banks.

    On any given date, there are many different transactions in the federal funds market and they settle at slightly different rates, the effective federal funds rate measures the median rate of these transactions.

    FOMC sets a target range for the federal funds rate. In other words, the majority of the banks’ transactions should fall within the target range. Banks with deficits can borrow money from other commercial banks. The next day those banks return the money with a little bit of interest.

    Now, the main task for the Fed is to use its monetary tools so that this federal funds rate goes up because this is the driving force for all the other interest rates in an economy.

    Interest on reserve balance is the main tool

    So, to steer the federal funds rate in the target range set by FOMC, the Fed uses interest on reserve balance as its primary monetary policy tool. The interest on reserve balances rate is the interest received by commercial banks on deposits that banks hold in their reserve balance account at a regional Federal Reserve Bank. This interest rate is a risk-free investment option for commercial banks. This, the interest on reserve balances rate is set by the Fed and is, therefore, an “administered rate,”.

    Interest on reserve balance: Banks can deposit the excess reserve with the Fed risk-free overnight, and earn interest just like you can do with a savings account.

    When the Fed sees the economy is overheating with high inflation and a tight labor market, it tries to slow down the economy by raising the interest on the reserve balance. With that, the banks will be more willing to deposit their reserves with the Fed, rather than lending to other banks in the federal funds market.

    A key point to note here is that the interest on reserve balances rate serves as a reservation rate or the floor rate for banks. This is the minimum interest banks would be willing to accept in order to lend to each other, rather than keeping it with the Fed. If the Fed raises this interest on the reserve balance, commercial banks must raise the Federal funds rate in order to attract other banks to lend to them.

    Another key concept that ensures that the federal funds rate does not fall far below the interest on reserve balances rate is called arbitrage. Arbitrage means simultaneous purchase and sale of funds (or goods) in order to profit from a difference in price.

    So, for example, if we assume the federal funds rate is 1.75 percent and the interest on reserve balances rate is slightly higher at 2.25 percent, banks will see that they can borrow funds in the federal funds market at a lower rate and earn higher interest by depositing those funds at the Fed. They will keep doing that until with the forces of demand and supply, the increase in demand for funds in the federal funds market will cause the federal funds rate to rise. It will keep rising until it reaches the interest on reserve balances rate so that banks no longer see the opportunity to profit by borrowing in the federal funds market and depositing it with the Fed. 

    As the Fed sets the interest on reserve balances rate directly, the Fed can steer the federal funds rate up or down by raising or lowering the level of the interest on reserve balances rate. In fact, this phenomenon of arbitrage makes interest on reserve balances a very effective tool for steering the federal funds rate direction.

    There are two other tools that the Fed can use to guide the federal funds rate

    1. By setting a floor with an overnight reverse repurchase rate,

    2. and by setting the ceiling using a discount window

    Let’s understand both of them.

    The Fed has an overnight reverse repurchase facility that is open to a broader set of financial institutions, as interest on reserve balances is available only to banks and a few other institutions. This facility allows these financial institutions to deposit their funds at a Federal Reserve Bank and earn the overnight reverse repurchase agreement rate offered by the Fed.

    Thus, the overnight reverse repurchase agreement rate does the same thing as the interest on reserve balances rate does by acting as a reservation rate for these financial institutions. If this rate is higher than the federal funds rate, then by pressure of demand and supply, the Federal funds rate starts going up until there is no profit from arbitrage. The overnight reverse repurchase agreement facility is a supplementary tool because the rate the Fed sets for it helps set a floor for the federal funds rate.

    So when it raises the overnight reverse repurchase rate, the Federal funds rate tends to move up as well.

    The discount rate is the rate banks have to pay to the Fed for borrowing money from the Fed through the Fed’s discount window. Banks are more likely to borrow from each other (at the federal funds rate) only if it is lower or equal to the discount rate that they have to pay to borrow from the Fed. Thus, the discount rate acts as a ceiling for the federal funds rate. Also, it is set higher than the interest on reserve balances rate and the overnight reverse repurchase agreement rate.

    Lastly, there is another tool that used to be the Fed’s primary tool to control the money supply in the economy before the 2008 financial crisis. This is called open market operations where the Fed would buy or sell t-bonds. Now, with ample reserves in the banking system, the Fed only uses this as a supplemental tool to help maintain ample levels of reserves. The Fed can buy or sell government securities in the open market to increase or decrease these reserves in the banks account with the Fed.

    In a nutshell, when the Fed wants to control inflation, it would set a higher range for the Federal funds rate. To achieve this target, it would increase the interest on reserve balances rate as the main monetary policy tool. It can also use additional tools by raising overnight reverse repurchase agreement rate, and discount rate. All this will ensure the federal funds rate stays within the high target range set by the FOMC.

    Why does the Federal fund rate matter?

    Since the federal funds rate affects all the other interest rates in the economy, all the other interest rates go up as well. At high interest rates, households will borrow less money to buy big-ticket items they want. This will cause a reduction in spending by households. This will cause overall savings to increase because now they are getting higher interest rate to save money in a bank.

    Once household demand is reduced, firms will reduce their investments. They will also reduce their workforce and demand fewer workers. This will reduce employment levels also and cause the inflated prices to return to the target of 2%.

    The now-raised federal fund rate would cause other market interest rates like mortgage, auto, and other interest rates that banks charge from households and businesses to rise as well. The increased cost of borrowing will reduce spending across all sectors of the economy, lowering excess demand and bringing prices back to normal.

    The Fed will do the exact reverse of this process when the economy is in a recession when the inflation is below the 2% target rate and there is high unemployment. It will lower the Federal funds rate target range by lowering interest on the reserve balance. It can also use additional help from lowering interest on overnight reverse repurchase agreement rates, and discount rates to give a boost to the economy.

    How effective are these tools in reality?

    All these monetary policy tools only work when inflation is caused by demand-pull factors. However, if it is due to cost-push factors, this measure may cause more harm than good. Cost-push factors include supply shocks when the supply of the products is hampered. There could be many reasons for a reduction in supply such as increased cost of raw material and other inputs, and natural calamities. Trade restrictions such as sanctions imposed on a country can also cause supply disruptions.

    Also, there is a direct link between reducing inflation and reducing overall economic growth. Even though central banks aim for a soft landing when they raise interest rates to bring down inflation, sometimes it doesn’t go as planned.

    In economics, a soft landing means a moderate economic slowdown following a period of growth. In the past, the Fed in the US has had a mixed record in achieving a soft landing when it raised interest rates.

    In addition, inflation expectations continue to play a key role in how people react to the contractionary monetary policy. If people continue to believe the prices to go up, they will tend to make the purchases now, rather than in the future when the worth of their money can get further low.

    The board of governors at the Fed, as well as various economists that work there, take into consideration all these factors and keep a watch on the trend. They can alter the monetary policy according to the direction of its performance.

  • What makes money, money?

    By definition, money is anything that is accepted as a medium of exchange. When we use the term “medium of exchange,” we mean we can use it to buy or sell anything (good or service) and that the other person will easily accept and use it for his/her transactions. Money is also a measure of value, which means a product’s worth (value) can be measured in the monetary unit. Just like gold and precious metals, money is also a store of value* (see note below), and a standard of deferred (future) payment, which means you can use the money to pay someone in the future and it will be acceptable by that person.  

    How did money come into being?

    Long time ago, when coins and currency were not there, people used to exchange goods for goods. That system was called a barter exchange system. But there were several problems with it. The most important was the lack of double coincidence of wants. Let’s understand this with an example. If, person A is growing rice and has extra rice than he needs, he has an option to trade it with someone who wants rice in return for something he wants. Now let’s assume person A actually wants wheat, he will have to find a person who has extra wheat and at the same time that other person (person B), must want rice in return for this trade to happen. But if person B doesn’t want rice instead wants something else, then there is going to be a problem in doing this commodity to commodity exchange.

    This Barter exchange system became very difficult to continue as the population grew, because searching for the “right” person to exchange one’s extra produce was not easy.

    Another problem with the barter system was that it didn’t have a store of value. Perishable items like milk, meat, and vegetables that people wanted to trade couldn’t be stored for a long time and would lose their value once they went bad. Nonperishable items may have a store of value but, were not always easily convertible into other things with universal acceptability.

    This lack of store of value also made this barter system very difficult to carry on. Also, the barter system could not make future payments.

    People needed something intermediary, something that both parties could accept to help the exchange of goods and services. Thus, all of these problems were eliminated by the introduction of money. As I mentioned in the first paragraph, there were various advantages of having money. The most important being its universal acceptability of being a medium of exchange and a measure of value. It also is a store of value and can be used for future payments. Though when inflation is really high (above the target level), money can lose its capacity to act as a store of value.

    The currency and digital money that everyone is using nowadays only came a few decades ago. Money had evolved over time into different types, and various items were used as money at different periods in history.

    In the past, people had used cows, salt, and stone wheels as money, as they were widely accepted as a medium of exchange for goods and services. The central bank of Brazil published this article about the origin and evolution of money. However, there was always the risk of diseases and death with cows, and people wanted something easier to carry.

    Then, there was commodity money like gold and silver coins, which people could use in exchange for goods and services and they also had their own intrinsic value as well. By intrinsic value, I mean gold and silver always have had worth to people because of their uses for jewelry, etc. The minting of gold and silver coins prevailed for many centuries.

    Then came the representative money which was a paper certificate that you could exchange for gold in a bank for the underlying commodity. As people started trusting these paper certificates same as much as gold, it led to the creation of modern money which is also known as the Fiat money.

    Fiat money does not have any value of its own, (just a piece of paper or metal) but it has a guarantee from the government of the issuing country.

    It is declared as the legal tender and is an acceptable form of payment backed by that country’s Central bank. We all know if we have paper currency or coins, we can use them anywhere and they will be accepted as a form of payment. In today’s modern economy, most of the time we don’t even hold currency, as all the payments and receipts can happen online, where the money gets debited or credited directly in your bank account from another person’s bank. A lot of countries have gone virtually cashless because a large number of people use smartphones nowadays and internet access has become much cheaper and wider. This has made the digital transfer of funds between two people just with a click of a button on phone. It is important to note that a credit card is not considered money* (read the section below Supply of money).

    Is there a thing called a Money market?

    Just like any commodity, money also has a demand and supply, and thus, has a market. The interest rate at which we borrow money is the price of money.

    Demand for money

    We hold money for two reasons. First is to make transactions, so we can make payments for our various expenditures. The transaction demand part is positively proportional to the real GDP and price level. In other words, people will demand more money when there is inflation and higher real GDP. It is simply because they will need more money to be able to purchase more goods and services (real GDP) and at higher prices (inflation).

    The second reason why people demand more money is for speculative reasons. To understand the speculative reason, first, we must understand that when we hold money, there is an opportunity cost for it. Opportunity cost, in economics, means the cost of missing the next best possible use of something. Which in this case is the sacrificed interest that we could have received if we had saved money in a time deposit with a bank instead. When there is extra money in people’s hands (high money supply), they can use it in two ways- spend it or save/invest it.

    When banks are charging and paying a higher interest rate, demand for money gets low because of two reasons. First for a borrower, the cost of borrowing money gets high, so he will borrow less and hence demand less money. Second reason is that when interest paid on our deposits are really high, we will expect interest rate to fall in future and want to convert their money in bonds. Bonds pay fixed interest and principal at maturity, and the interest promised at maturity doesn’t change with market interest rates changes. Thus, it becomes safer to invest our extra money in bonds than in a savings or time deposit with the bank. Interest rates are paid on time deposits, which can vary according to the central bank monetary policy tools. In this case, when the interest rates are high, the demand for money is low. With the same logic, when interest rates are very low in the economy, people expect them rise in future and will demand more money compared to bonds. So, speculative demand for money always has a negative relation with interest rates.

    So, the total money demand is equal to the money demanded for transactional and speculative purposes.

    Supply of Money

    The money supply is the total amount of money that the people in an economy are holding at a particular point in time.

    Central bank of a country has the authority to issue the currency of any country. This currency issued by the central bank is held by the public and by commercial banks.

    In the US, the Fed controls the money supply of the country through various tools by changing interest on reserve balance and thereby controlling the federal funds rate and other interest rates in an economy. You can read about this in more detail in my post here.

    The money supply is a stock concept, which means it is measured at a particular point in time and a country’s central bank usually publishes the total amount of money periodically.

    Money is a financial asset that we can spend to purchase goods or services. When calculating the money supply, the central bank includes financial assets like currency and deposits. On the contrary, credit card debts are liabilities. With each credit card transaction, a new loan is created for the credit card issuer, which needs to be repaid with a financial asset called money. 

    The two establishments in any country, the Central bank and commercial banks play an important role in deciding how much money is circulating in an economy at a particular time.

    Since different assets can be used as money, the central banks give various categories and definition to keep track of it. In the US, there are two commonly used measures of money, known as M1, M2.

    M1 is the most liquid and widely accepted. It includes paper currency and coins held by the public + demand deposits of public at commercial banks, + other highly liquid accounts called other checkable deposits. Prior to April 24, 2020, savings accounts, deposits were not part of M1. Savings are now more liquid and part of “M1 money”. Regulation D by the Fed has made savings deposits as convenient as currency. The Fed published data on M1 and M2 every month, As of April 2022, the United states had $20.6 trillion in M1.

    M2 = M1 + small-denomination time deposits of under $100,000 + balances in retail money market funds. As of April 2022, The United States had $21.7 trillion in M2.

    https://www.federalreserve.gov/releases/h6/current/default.htm

    If you are interested in learning about the linkages between banks and the central bank, please click here.