Foreign Exchange is a business which is directly related to the Geography of the Earth. Mother Nature has ensured that the natural resources required for mankind and other species that take birth to carry on their lives on the planet Earth are adequately provided for. However, the beauty / paradox of it is that these resources are not evenly / uniformly spread throughout the globe. In this, perhaps, there is a subtle advice / indicator / lesson by nature that human beings will have to give and take and lead their lives by sharing and caring. Alas, that is not to be in reality.

We human beings have carved for ourselves artificial / man-made boundaries, prompted by our egos, from time immemorial. This has led to the formation of about 193 Member States, as mentioned on the United Nations General Assembly website, and about 239 countries as per the ECGC Limited’s Country Risk Classification as of 04/07/2025.

In this background, it is pertinent to note that no country on Earth is capable of taking care of all needs and necessities in the lives of its Citizens on its own. Every country will have to depend on some others for this. For this reason, cross-border exchanges of products / services / technology / people must happen for the overall prosperity of all countries and the world order.

In addition, since most of these cross-border activities take place for mercantile and commercial purposes, the medium of exchange that is acceptable also becomes crucial.

It is interesting to note that there are only 164 national currencies for the 239 countries, which means many countries have common currencies, e.g., the Euro is the common currency for 20 countries, and some use the currencies of other countries.

The area has assumed so much significance that it is treated as a separate branch of economics in itself. It is pertinent here to note the important distinguishing factor between domestic trade and international trade, i.e., the different forms of money, monetary systems and policies, amongst others. This has necessitated the ‘Exchange’ of one currency for another and hence the name Foreign Exchange.

The above has prompted the need for the exchange of two or more currencies whenever cross-border activities are undertaken. The value of a currency vis-à-vis the others also depends directly on the extent of economic development a country has achieved and the level of universal acceptability it has achieved. This paves the way for the different currencies to be exchanged at values which are determined based on situations /scenarios arising out of theories and postulations like the Purchase Power Parity (PPP) / Real Effective Exchange Rate (REER) / Nominal Effective Exchange Rates / Ground Realities on the Geo-political front, etc. To put it simply, foreign exchange can be defined as ‘Exchange of x’ number of units of home currency of a country with that of ‘y’ number of units of a foreign currency based on the dependencies as explained earlier.

Foreign exchange as a resource is very precious; in fact, for an emerging market economy like India (as per International Monetary Fund (IMF) Classification), it is by far the most precious resource that it can and should have for its development. It can safely be considered a National Treasure. In the absence of sufficient foreign exchange reserves, a country can face a stark and dire situation like Sri Lanka / Lebanon, etc., where the local currency gets completely devalued. India has also come from the brink of such a disaster as was prevalent in July 1991.

A severe economic crisis developed due to the lack of sufficient foreign exchange reserves, and the country had to first pledge gold with the Bank of England and then had to approach the IMF for a bailout. The resulting consequence was the implementation of the popular LPG Mantra (Liberalise / Privatise / Globalise), which opened up our country to the outside world like never before in modern times.

As mentioned earlier, foreign exchange (forex) is a precious commodity which can be bought and sold. The rate at which one currency is exchanged for another is called the Exchange Rate. This exchange rate depends on the inter-se demand and supply position of the currencies that are sought to be exchanged, based on some factors like the PPP / REER / NEER / short-term and long-term views of the movement of value of the currencies based on market dynamics.