The importance of economic doctrines and systems is not limited to the political aspect, but rather extends to the scientific aspect. The role of economics was limited to observing economic facts, analyzing them, extracting the links between them, and deriving economic laws. However, this abstract theoretical role developed under the influence of interventionist economic opinions, such that economics became an applied science aiming to achieve purposes determined in advance. There is no longer anyone who now believes that economic and social deficiencies, such as economic crises and poverty, are phenomena that have no cure, like earthquakes and volcanoes, and economics merely observes and records them. Rather, the overwhelming majority now believes that these phenomena must be addressed by completely eliminating them, or at least by tangibly reducing their effects, with economics studying and analyzing them, in order to influence them and direct them in the direction we want. Every economic system has its economic problems that researchers are available to study and find appropriate solutions. she has.