The Interest Rate is the market rate that the buyer (or borrower) has to pay the seller (or lender). Interest rates impact the local currency’s strength against other currencies. Interest rates in each country are determined by its central bank, as part of its monetary policy. The compatibility of interest rates to market conditions helps maintain stability. Central banks raise interest rates in order to decrease inflation if they believe it is too high. In other words, increasing the interest rate will cause inflation to slow down and even stop, which in turn leads to a drop in prices while strengthening the currency! Meaning, it moderates the pace at which the economy grows.
Remember: In a healthy economy the interest rates usually vary between 3% and 5%.
For those who are not quite sure what inflation is – it is growth rate in prices. Inflation is the reason a chocolate bar that cost 5 cents twenty years ago costs 30 times more today. All in all, central banks are interested in market growth, but to control inflation (so it will not go too high), they raise interest from time to time and thereby restrain and control growth.
Inflation higher than 2% is usually not healthy. The same goes for a market with no inflation at all.
Remember: Announcements about interest rates deeply affect currency trading movements.
Example: In the early 2000s, the interest rate in the U.S. decreased. This move had a huge influence on the US dollar for many years to come, in a process lasting almost a decade (till approximately 2007-2008). Reducing interest rates weakened the dollar against other currencies, thereby changing the face of U.S. real estate throughout the first half of that decade.
Interest Rate Rises = Lower economic growth + Inflation slows
Interest Rate Cut = Higher economic growth + inflation speeds up
The order of events is supposed to follow the order of the above examples, but it doesn’t always work that way. The purpose of the image above is to simply show how things are supposed to go in a perfect world but we don’t live in a perfect world, and that’s why you must understand the fundamentals.
The most significant times in a given market are when interest rates are expected to change. If the interest rate has already moved in a certain direction a few times, it must be balanced back. That is what speculators build their trades on.
Interest Differentials – a trading method based on two currencies’ rates: Many traders choose pairs by comparing the interest rates of two currencies. If the “interest rate differential” (the gap between the two interest rates) gets bigger, it will strengthen the stronger currency of the two (and vice versa). This strategy is called the “Carry Trade Strategy”.
- While one interest rate is supposed to go up and at the same time, the other one will go down, this could cause serious changes in price.