Global economic policy uncertainty and renewable energy demand: Does environmental policy stringency matter? Evidence from OECD economies

Abstract

Existing literature recommends the essential role of renewable energy consumption (REC) in achieving environmental sustainability. Although prior works have investigated the significant factors of REC, the effect of green environmental policies remains largely understudied, particularly in OECD countries. Therefore, this study specifically examines the role of environmental policy stringency (EPS) in enhancing (or diminishing) REC in 27 OECD economies between 2000 and 2019. Furthermore, we aim to specify the determinants of REC and investigate whether EPS could help moderate the relationship between global economic policy uncertainty (GEPU) and REC. To accomplish this, we employ both the fixed effects and panel quantile estimation methods. The findings underline that EPS has a positive and significant impact on REC, indicating that stricter green environmental policies lead to encouraging REC. Besides, the findings show that EPS has a beneficial role in lessening the negative effect of GEPU on REC, and its negative effect on REC is more moderated as moves from environments with low EPS to high EPS. The results also underscore that financial market development, FDI, remittances, technological innovation, and economic development positively promote REC whereas CO2 and natural resources rents have a detrimental impact. The findings are significant and a wide range of policy suggestions is recommended to governments, policymakers, and regulators to attain the energy and environmental sustainability targets set out in SDG 7 and SDG 13, respectively.