Commodity prices and economic growth in commodity-dependent countries: New evidence from nonlinear and asymmetric analysis

Natural resources volatility and causal associations for BRICS countries: Evidence from Covid-19 data

“…Thus, our findings suggest that natural resource rent volatility is harmful to economic performance of the studied economies. The existing findings of ( Hordofa et al, 2021 ), ( Tahar et al, 2021 ), ( Monye Michael and Omogbiya Shulammite, 2020 ), (B. Lin and Bai, 2021 ) second our findings that natural resources prices and the volatility in these prices affect any region or country’ economic growth.…”

“…Some of the studies investigated oil price and economic growth relationships (B. Lin and Bai, 2021 ), ( Tahar et al, 2021 ), ( Monye Michael and Omogbiya Shulammite, 2020 ), (B. Lin and Bai, 2021 ), some studies investigated gas rents or prices and total natural resource price’ relationship with growth ( Guan et al, 2021 ), ( Shahbaz et al, 2019 ), ( Hayat and Tahir, 2021 ), ( Etokakpan et al, 2020 ).…”

“…It was found that Covid-19 and global financial crisis had a much greater impact on the crude oil price than on the gold market. Tahar et al (2021) employed ARDL model to reveal the long run and short run symmetric effects of price volatility of natural resource commodity prices with economic performance in commodity dependent countries. Their empirical estimation revealed that boom effect (current commodities) of 2004–2014 period had significant variation from past phenomena that illustrated the learning impacts gained from the previous experiences.…”

Economic Prosperity, Asymmetric Natural Resource Income, and Ecological Demands in Resource-Reliant Economies

“…Thus, the nonlinear relationship was examined to ensure the robustness of this study's inferences, and the result is presented in Table 8. Undoubtedly, the asymmetric models' outcomes are robust to the linear model; affirming that asymmetry exists in the natural resources rents' effect on economic growth as prior suggested by Varangis et al, 2004;Addison et al, 2016;Erdogan et al, 2020;Ampofo et al, 2021;Tahar et al, 2021. Environmental quality is revealed in Table 8 to have a positive long-term effect on economic growth, which corroborates prior submission by Alabed et al (2021). Environmental variables affect economic growth through environmental policies.…”

A sequentially advancing algorithm based on multi-value dynamic programming for the cut-off grade optimization in open-pit metalliferous deposits

“…Su et al [38] stated that the emergence and collapse of several price bubbles is connected to supposition, macroeconomic instability, a supply-demand imbalance, and economic turmoil. Tahar et al [39] agreed that commodities prices shocks might have differential effects. The most of commodities' economies are highly volatile and difficult to anticipate.…”