Why Can a Currency Strengthen? These are the Determining Factors.
The exchange rate of a country’s currency does not move without reason.
There are many factors that make a currency strengthen, ranging from interest rates, inflation, economic conditions, to investor confidence in the stability of a country.
In global trade, a strong currency usually reflects high market confidence in a country’s economic prospects.
Quoted from Forbes, Sunday (17/5/2026), one of the main factors that makes a currency strengthen is the interest rate level.
When a country’s interest rate is higher than other countries, global investors tend to move their funds to that country in order to get greater returns.
The inflow of foreign capital increases demand for the domestic currency. When demand rises, the exchange rate tends to strengthen.
This process of purchasing assets automatically increases the need for the currency of the country concerned.
In practice, the relationship between interest rates and exchange rates is one of the fastest factors influencing the foreign exchange market.
Global investors will continue to compare potential investment returns between countries, especially in the face of rapidly changing global economic conditions.
Quoting Investopedia, a country with low inflation usually has a stronger currency than a country with high inflation.
Low inflation maintains people’s purchasing power and increases investor confidence in the country’s economy.
Conversely, high inflation can erode the value of a currency because the prices of goods and services continue to rise.
The relationship between inflation and interest rates is also interrelated. When inflation rises, the central bank usually responds by raising interest rates to curb rising prices.
The increase in interest rates can strengthen the currency because it makes investment instruments in that country more attractive.
However, if inflation is too high, the market may still see the economic conditions as risky so that the strengthening of the currency becomes limited.