Over the last few years, economic uncertainty has become a global concern. Not only has its impact on economic activities, but there are pieces of evidence that show uncertainty can be the reason for CO2 emissions. It is also expected that the economic policy uncertainty may decrease or delay economic production, which may lead to a reduction in carbon emissions. Furthermore, uncertainty may decrease friendly environment policies and budgets, which cause increase in carbon emissions. Thus, there may be an asymmetric relationship between economic uncertainty and the amount of CO2 emissions. This study investigates the effects of economic policy uncertainty and economic activity on carbon emission applying a Nonlinear Autoregressive Distributive Lag (NARDL) cointegration approach in Iran between 1971 and 2018. Findings show that both policy uncertainty and economic growth contribute to CO2 emissions. The negative and positive shocks of GDP and uncertainty index on CO2 emissions in both the short-run and long-run are significant.It can be concluded that there is an asymmetric effect of economic production on CO2 emissions in Iran. The results of analyzing asymmetric effects of economic uncertainty show a symmetric relationship between uncertainty index and CO2 emissions. In a way that a shock in uncertainty index lowers carbon emission. To sum up, since uncertainty may affect the analysis of carbon emissions incorrectly, some environmental policies such as allocating a budget for R&D on clean energy, and environmental taxes must be implemented.
IJEPEE is at the forefront of analysing the economic development of emerging economies in the global context, fostering discussion on research with significant, long-term impact. It explores the causal factors, potential and limits of economic policy in Eastern Europe, Eurasia, Africa, Asia, Latin America and the Middle East, projecting possible economic developments in the light of growing opportunities. Booming markets, massive potential for local consumer markets and abundant low-cost labour make emerging economies key players in international trade and business. Contents IJEPEE publishes original papers, review papers, technical reports, case studies, conference reports, and book reviews. The journal will regularly publish special issues.
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