Research background: The world economy is currently affected by the devastating effects of the global COVID 19 pandemic, reaching the Great Depression of the 1930s. The economic policies of the affected countries are currently focused on short-term measures on the aggregate demand side. To this end, the growth of the public finance deficit is being prepared in the area of fiscal policy, which will ultimately deepen the indebtedness of national economies. If this economic policy is to be sustainable in the long term, measures on the aggregate demand side must be accompanied by measures on the aggregate supply side. Purpose of the article: The purpose of this article is to determine how the current globalization processes affecting the supply and demand sides of selected national economies will be affected in the short and long term as a result of the global COVID 19 pandemic. Methods: A description of the AS - AD model will be performed, covering both short and long periods, and then a description of the impact of globalization processes on aggregate supply and aggregate demand. This will be followed by an analysis of the expected economic and social impacts of COVID 19 on individual globalization processes affecting the supply and demand sides of selected national economies and economic units. Findings & Value added: The article will help to find a systemic approach to the recovery of national economies affected by the effects of the global pandemic COVID 19 through the prism of the AS - AD model.