EN
This study looks at the concepts of welfare, luxury and happiness from the point of view of economic thought. It presents the historical development of these ideas as economic categories and their place in the current economic theory. The author illustrates that welfare and luxury are not necessarily closely related categories. Conversely, welfare has always been primarily associated with a good life. Research into happiness played an important role in economics until the 20th century and was associated with being capable of relating well to others, of solidarity and self-help. The terms happiness and welfare are commonly interchanged.