As with all social sciences, the fields of public finance and sociology are strongly interconnected, based largely on the fact that the cornerstone of all social sciences are people, and that both disciplines are devoted to improving standards of living. Sociology is built around the relationships human beings hold with each other, as the cornerstones of society. On the other hand, the science of public finance emerged to satisfy the need to control the income and expenses of governments, allowing them to meet the needs of the public, as societies of people living together. This study will make an analysis of the course of external debts in the post-1980 period, and will evaluate the impacts of these external debts on the fiscal sociology.