The Effect of Market Structure on Sales of Coal Companies Listed on the Indonesia Stock Exchange (IDX) for the Period 2018 - 2022 DOI Creative Commons

Said Nur Octavianto,

Amin Pujiati,

Sucihatiningsih Dian Wisika Prajanti

et al.

Ekuilibrium Jurnal Ilmiah Bidang Ilmu Ekonomi, Journal Year: 2024, Volume and Issue: 19(2), P. 223 - 244

Published: Sept. 3, 2024

The limited product diversification of the Indonesian coal mining industry underscores imperative for formulation strategic business plans to navigate intensifying market competition. This study aims examine structure, factors influencing sales, and impact structure on sales performance companies in Indonesia. employs a quantitative method utilizes range analytical techniques, including CR4, HHI, MES, CLR, PCM, multiple linear regression. CR4 HHI analysis revealed that Indonesia is classified as highly concentrated tight oligopoly. MES yielded conclusion new sector face significant barriers entry. findings CLR analysis, which indicates capital-intensive industry, suggest equity capital are primary contributors challenges faced by attempting enter market. results regression indicate production volume have positive effect company sales. finding corroborated PCM suggests with low share tend set higher margins obtain greater profits. Increasing investment levels may serve viable strategy, particularly when supported government policies aimed at fostering secure stable environment enhance capital.

Language: Английский

Response of renewable energy minerals to energy policy and technological advancement: An assessment of the Russian energy crisis DOI
Uğur Korkut Pata, Sinan Erdoğan, Selin Karlilar Pata

et al.

Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 370, P. 122608 - 122608

Published: Sept. 21, 2024

Language: Английский

Citations

4
Numerical Analysis of Combined Dust-Gas Control in Roadway Excavation DOI

Tianyuan Gao,

Haiming Yu, Yao Jie Xie

et al.

Journal of Cleaner Production, Journal Year: 2025, Volume and Issue: unknown, P. 145023 - 145023

Published: Feb. 1, 2025

Language: Английский

Citations

0
Experimental Study on Gas Flow Characteristics in Coal under Different Mining-Induced Stress Paths DOI Creative Commons

Xinglin Qin,

Linfan Qi, Xianfeng Liu

et al.

ACS Omega, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 19, 2025

To investigate the impact of stress variations on coal permeability during mining, this study combines theoretical analysis with experimental research to reveal variation patterns under three mining-induced conditions. The results indicate that exhibits a three-stage characteristic different stresses: slow increase, significant and rapid increase. As axial increases, initially decreases then stabilizes. After reaching strain peak sample failure, through-cracks form surface, leading During quasi-hydrostatic pressure loading stage, increasing stress, while it gradually recovers confining unloading notable increase after stress. Gas extraction efficiency is particularly ideal peak, most effect observed in relief zone. Based Forchheimer equation Klinkenberg effect, calculated parabolic trend between gas flow rate gradient, as well pore permeability.

Language: Английский

Citations

0
Financing sustainable energy: Cost-benefit analysis of CO2 reduction in China DOI Creative Commons

Yunping Cao,

Sanjar Mirzaliev,

Fadhila Hamza

et al.

Energy Strategy Reviews, Journal Year: 2025, Volume and Issue: 58, P. 101667 - 101667

Published: March 1, 2025

Language: Английский

Citations

0
On cutting coal dependency for establishing a cleaner energy mix: A proposal for energy transition strategy in South Africa DOI Creative Commons
Sinan Erdoğan, Uğur Korkut Pata, Andrew Adewale Alola

et al.

Energy Strategy Reviews, Journal Year: 2025, Volume and Issue: 58, P. 101694 - 101694

Published: March 1, 2025

Language: Английский

Citations

0
Review of organic pollutants in coal combustion processes and control technologies DOI
Jun Liu,

Tao Wang,

Longchun Zhong

et al.

Progress in Energy and Combustion Science, Journal Year: 2025, Volume and Issue: 109, P. 101231 - 101231

Published: March 20, 2025

Language: Английский

Citations

0
The Effect of Market Structure on Sales of Coal Companies Listed on the Indonesia Stock Exchange (IDX) for the Period 2018 - 2022 DOI Creative Commons

Said Nur Octavianto,

Amin Pujiati,

Sucihatiningsih Dian Wisika Prajanti

et al.

Ekuilibrium Jurnal Ilmiah Bidang Ilmu Ekonomi, Journal Year: 2024, Volume and Issue: 19(2), P. 223 - 244

Published: Sept. 3, 2024

The limited product diversification of the Indonesian coal mining industry underscores imperative for formulation strategic business plans to navigate intensifying market competition. This study aims examine structure, factors influencing sales, and impact structure on sales performance companies in Indonesia. employs a quantitative method utilizes range analytical techniques, including CR4, HHI, MES, CLR, PCM, multiple linear regression. CR4 HHI analysis revealed that Indonesia is classified as highly concentrated tight oligopoly. MES yielded conclusion new sector face significant barriers entry. findings CLR analysis, which indicates capital-intensive industry, suggest equity capital are primary contributors challenges faced by attempting enter market. results regression indicate production volume have positive effect company sales. finding corroborated PCM suggests with low share tend set higher margins obtain greater profits. Increasing investment levels may serve viable strategy, particularly when supported government policies aimed at fostering secure stable environment enhance capital.

Language: Английский

Citations

0