International exchange rates show how much one unit of currency can be exchanged per unit of another currency. Currency exchange rates can be floating, in which case they are constantly changing based on many factors, or they can be tied (or fixed) to another currency, in which case they also float, but they move in tandem with that currency, to which they are attached.  

Forex exchange rate is the ratio of the price of one currency relative to another. A couple of decades ago, the rate of any currency could be learned only from financial news on television or radio, but at the present time, everything is much easier and more convenient when working on the currency market.

Each currency has an interest rate attached to it, and the difference in interest rates for each currency pair you hold could result in a debit or credit being applied to your account each night. Rollover (or swap) is a way to increase profits or reduce losses, or being on the wrong side of it can cut into profits or add to losses. Rollover is an important concept in forex trading and one that you should be familiar with if you wish to use more advanced trading strategies.

When it comes to fundamental analysis of a currency of a particular nation, one of the most influential factors to mark trading currency pairs, is the monetary policy course, adopted by central banks. A nation’s central bank, acting as a monetary authority which ultimately strives to achieve price stability in the country, uses monetary policy in order to control the money supply, or the total amount of money available in the economy.

Currency war, also known as competitive devaluation, is a condition in international affairs where countries compete against each other to achieve a relatively low exchange rate for their own currency. As the price to buy a country's currency falls so too does the price of exports, and Imports to the country become more expensive.

The currency of every country can potentially be converted to a universal and exchangeable foreign currency in international markets; this however happens only when such a currency is demanded from other countries. The increase of currency demand in global foreign currency exchange markets results in the discussion of currency geopolitics.

Forex is short for foreign exchange and it refers to the international currency trading market. This is an over-the-counter market which allows traders to participate in the ever-changing forex trading currency exchange rates. The forex market is basically open 24 hours per day, five days a week. There is no trading activity on the weekends.

The foreign exchange market (Forex) is a global decentralized market for the trading of currencies. In terms of volume of trading it is by far the largest market in the world. The main participants in this market are the larger international banks. Financial centers around the world function as anchors of trading between a wide range of multiple types of buyers and sellers around the clock with the exception of weekends.