This article focuses on one of the most important factors in economic growth and development. The revealing magnitude of the introspection of financial and economic crises is proving to be of unwavering preponderance in the economic machinery and is gradually being circumscribed by economists and public authorities. This being said, the deepening of the two financial crises of 1929 and 2008 is an object to be contemplated. Subsequently, we will analyze the similarities and disparities between the crises of 1929, 2008 and 2020. In this project, we will try to approach the question of the economic crises and its extensions on the socio-economic level by the means of the two aforementioned crises via the metonymy of their etiologies then their incidences. Finally, we will have the duty to discuss the recovery policies that have been introduced.