This study aims to test the determinant of the
capital structure consisting of variable profitability
proxified by return on asset (ROA), asset structure,
liquidity projected with current ratio (CR) and the size
of the company against the structure of capital in the
mining business of the coal subsector listed on the
Indonesia Stock Exchange in 2014-2018. This research
sample was obtained by purposive sampling method.
Based on the criteria for selection of the sample, 10
companies were sampled for the study. The data analysis
technique used is the regression of the data panel with
the selected model random effect model. . The Value
Adjusted R-square (R²)=0.434760 means that
independent variables are able to explain the variation of
dependent variables by 43.47%, while the remaining
56.53% is explained by other factors beyond this study.
The F test of 0.00000 is smaller than the level of
significance of α=0.05, noting that simultaneously
independent variables have a significant effect on the
capital structure. The results show liquidity variables
had a significant negative effect on the capital structure.
While variable profitability, asset structure and size of
the company have no effect on the capital structure
Keywords : Capital Structure, Profitability, Asset Structure, Liquidity, Size of Business