A scientific study conducted in the Business Administration Department at Al-Mamoun University College investigates the impact of fiscal policy on economic growth in Iraq. The study conducted by a research team consisting of Professor Dr. Siham Kamil Mohammed, Assistant Lecturer Nahla Qasim Mohammed, Assistant Lecturer Shahad Naseer Saadi, and Assistant Lecturer Taghreed Alaa Mohammed, has been published in a reputable international journal classified within Scopus databases. It aims to provide a brief overview of the economic thinking approach adopted by schools of thought in economics throughout the ages.

There are areas of prevailing differences in economic intellectual theories and how markets work. On the other hand, there is criticism directed at most theories according to many of these economic models and the role of fiscal policy in stimulating total production and employment through government spending and its impact on economic growth.

Taxes in government expenditures, inflation rates, long-term interest rates, as well as budget deficits, debts, savings, and gross domestic product are among the most common topics in these theories. Additionally, investments and fixed capital accumulation, which were addressed by dynamic programming and measuring examples for decision-making in each case, and determining the sector with the highest fixed capital accumulation for specific years, are also covered.