Pengaruh Total Asset Turnover dan Debt To Equity Ratio Terhadap Nilai Perusahaan Tobin’s Q Melalui Rentabilitas Ekonomi pada Perusahaan Pertambangan yang Listing di BEI Periode 2008—2011

This research aimed to (1) determine the influence of total asset turnover on firm value of Tobin's q and indirectly through economic profitability, (2) determine the influence of debt-to-equity ratio towards the the firm value of Tobin's Q and indirectly through economic profitability on mining companies during  2008 -2011. The type of this study falls under the category of associative causality. The population used in this study is all members of mining companies listed in BEI during 2008-2011. Yet, the samples used are 11 mining companies obtained through purposive sampling technique. Meanwhile, the data analysis techniques is done through path analysis in order to see the direct influence of exogenous variables, total asset turnover (X₁) and debt-to-equity ratio (X₂) toward endogenous variables that is firm’s value of Tobin's q (Y), and the indirect influence through intervening variable in the form of economic profitability (X₃). Furthermore, the result findings of this study state that total asset turnover has no significant effinfluence on Tobin's Q firm value and total asset turnover as well as on economic profitability. Whereas, the debt-to-equity ratio has no influence on Tobin's Q firm value but indirectly influence through the economic profitability on mining companies listed in BEI during 2008-2011.