A variety of fundamental and technical aspects can cause an exchange rate to move. The most notable influences include interest rates, inflation and political stability. Sometimes, governments will buy or sell a currency in an effort to influence its value with a view to having a broader effect on the country’s economy. This is known as ‘central bank intervention’ and can have a significant impact on the value of a currency. Given the size and diversity of participants, no one single factor can influence the Forex market for any significant length of time.