Interest Rates

Key points

• An interest rate is the cost of borrowing money or the return on an investment, expressed as a percentage.
• It is one of the most influential variables in the economy, affecting credit, consumption, investment, and the value of currencies.
• Changes in interest rates ripple through every market, including the crypto asset market.

What are interest rates?

An interest rate is the price of money over time. From the borrower's side, it represents how much it costs to use someone else's resources for a period; from the investor's side, it represents the return for making money available to others. In both cases, it is expressed as a percentage of the principal amount over a set term, usually per year.

How it works

Each economy has a benchmark base rate, set by the monetary authority, which serves as an anchor for all other rates practiced in the market. When this rate rises, borrowing becomes more expensive and investing tends to yield more, which discourages consumption and investment and cools the economy. When it falls, the opposite happens: credit becomes cheaper and activity tends to pick up. This is the mechanism through which interest rates influence the pace of the economy.

Interest rates are a central tool of monetary policy, widely used to control inflation. Facing rapidly rising prices, authorities tend to raise interest rates to curb demand; facing a weak economy, they tend to lower them to stimulate it. These decisions affect everything from the cost of financing to the value of the currency in foreign exchange, rippling through the entire economic and financial chain.

The effects also reach the crypto universe. Higher interest rates make traditional investments more attractive and increase risk aversion, which can reduce appetite for volatile assets; lower interest rates usually have the opposite effect. That is why interest rate decisions and expectations move markets broadly, and related data is closely watched by participants in every market, including crypto.

Understanding interest rates helps interpret much of the economic news and its repercussions.

Why it matters

Understanding interest rates helps explain how the cost of money affects the economy and why interest rate decisions move every market, including crypto. It is a foundational concept for interpreting the economic landscape. This is an educational explanation and does not represent any investment or trading recommendation.

Risks and limitations

The effect of interest rate changes is complex, lagged, and influenced by many factors, which makes it difficult to predict the outcome. The relationship between interest rates and the behavior of crypto assets is real, but indirect and mediated by other variables. In addition, there are several rates in the economy, and generalizing from just one can be misleading. Nothing here constitutes a recommendation.