The Influence of Capital Structure, Profitability, and Firm Size on Firm Value: The Mediating Role of Leverage in Coal Mining Sub-Sector Companies Listed on the Indonesia Stock Exchange (IDX) from 2022 to 2025

Abstract

This study aims to analyze the effects of capital structure, profitability, and firm size on firm value, with leverage as an intervening variable, among mining companies in the coal subsector listed on the Indonesia Stock Exchange (IDX) for the period 2022–2025. This study employs a quantitative approach using secondary data. The sampling technique used is purposive sampling based on predetermined criteria. The data analysis methods used include descriptive statistical analysis, classical assumption tests, and path analysis. The results show that capital structure, profitability, and firm size have a significant effect on leverage and firm value. Leverage also has a significant effect on firm value and mediates the relationship between capital structure, profitability, firm size, and firm value.