What has become the most common factor that has made trade so influential and required element of existence of majority of people currently?

Trade is certainly one of those fields that majority of people are not able to imagine their functioning without. There are considerable number of reasons why people think in such way, but in order to explain this tendency we should, first of all, not forget that the growth in this topic is referred to the impact of two most influential powers in each economy – demand and supply. It is connected with the fact that owing to the demographic growth as well as rising needs of the buyers internationally, the side of demand tends to be bigger than the supply.