Change is called the process by which a certain state of things happens to another state. Starting from this basic notion, each field of human knowledge adopts a concept of change that is its own. Thus, one can speak of the use of the term instead in economics, biology, philosophy, etc. Each of these variants has peculiarities that are only explained in the context of that knowledge.
One of the most common uses of the word "change" can be found in a market economy. There this word refers to the barter of goods and services for money. In this context, it is common to speak of free trade, that is, that this trade in goods and services must be exercised by the different actors in the economy without imposing a higher authority such as the state; at most there may be regulations on it, but it cannot run the entire economy. This situation of free exchange is what determines the price of the various goods and services in the equilibrium established between supply and demand.
Another use of the term change can be offered by the area of philosophy.. It should be noted that since the dawn of this discipline, the concept of change has been the subject of arduous and conscientious reflections. Indeed, one of the main and first problems that arise for philosophical reflection is that of permanence and change. The difficulty in this case lies in establishing the reason why a certain object can change its state and be the same at the same time. Thus, for example, a person is constantly changing and at the same time is the same. Various answers were given for this proposal, the best known being those of Parmenides, Heraclitus and Aristotle; the first denied the existence of change, the second established that everything was mutable, and the third established that some qualities were mutable while others were not.
In biology, change is marked by evolution. Thus, when the cells of an organism divide, they adopt mutations that can be passed on to subsequent generations; if these constitute an adaptation to the environment, they will increase the chances that this species will survive and reproduce.
So far, there have been some variants of "change" that are in more common use. However, it is possible to find countless of them that will depend on the frame in which they are framed.
