Semnan University International Journal of Nonlinear Analysis and Applications 2008-6822 16 11 2025 11 01 Asymmetric effects of oil prices and oil revenues on Iran's economic growth: Vector auto-regression (VAR): A nonlinear approach 143 159 9227 10.22075/ijnaa.2024.28591.3948 EN Asma Gamoori Department of Oil and Gas Economics, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran Seyed Nematalleh Musavi Department of Agricultural Economics, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran Abas Aminifard Department of Economics, Shiraz Branch, Islamic Azad University, Shiraz, Iran Journal Article 2022 10 09 Oil, the main source of energy and the engine of economic growth is an essential input to the production process, whose consumption has increased significantly with the modernization of the economy. This study aims to investigate the asymmetric analysis of oil prices and oil revenues in Iran. In this regard, four models were examined. In the first two models, the impact of oil prices and revenues was estimated on the economic growth, and then the impact of oil prices and revenues on economic growth without oil was estimated using the nonlinear Autoregressive Distributed Lag (NARDL) model. The results of the study for the period 2018-2000 indicate that oil prices and oil revenues have an asymmetric effect on oil economic growth, but have a symmetrical effect on oil-free economic growth. https://ijnaa.semnan.ac.ir/article_9227_2eb5cdc651499e1b17675859a0553ed1.pdf