This study aims to examine the influence of capital structure towards firm value. The sample of this research consists of 101 manufacture companies listed in the Indonesian Stock Exchange during the period 2012-2015. The results of this study indicate that the higher the capital stucture with Debt to Equity Ratio (DER) and Long term Debt to Asset Ratio (LDAR) are indicators of a higher firm value, while lower Long term Debt to Equity Ratio is an indicator of a lower firm value. The study has found a positive correlation between Debt to Equity Ratio (DER) and Long term Debt to Asset Ratio (LDAR) to firm value, and a negative correlation of Long term Debt to Equity Ratio (LDER) to firm value. However, the capital structure with Debt to Asset Ratio (DAR) did not seem to have an influence on the firm value.

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This research aims to know the influence of variable capital structure as measured by debt to equity ratio (DER), the investment opportunity set as measured by the market to book ratio (MBA) asset and liquidity as measured by the current ratio (LIQ) against the value of the company that projected through the Price to Book Value (PBV) on the banking company listed on the Indonesia stock exchange (idx) of the period 2009-2013. This research population is 39 banking company. Purposive Sampling was used as sampling techniques and 29 companies selected as research samples. This study uses secondary data analysis and multiple regression. The results shows that the structure of capital and investment opportunity set has positive influence to the value of the company's liquidity and has no effect on the value of the company. While the size of the company as a control variable has a significant positive influence to the value of the company. Simultaneous capital structure, investment opportunity set and the liquidity effect significantly to the value of the company.Keywords: capital structure, Investment Opportunity Set, Liquidity, size of the company and the value of the company.

The purpose of this study is to examine the effect that caused the application corporate governance  (Measured by the corporate governance index of the IICG) in the exercises oversight of the conduct of the environmental disclosure (Measured by IER Index of Suhardjanto), and to determine whether environmental performance the company (Measured with PROPER) as a moderating variable can be moderate influence of application corporate governance to environmental disclosure of company PROPER participants and listed in Indonesia Stock Exchange during 2010-2013 period. The method used to collect data is the purposive sampling method. Sampling criteria in this study is the Company that participate in Program Performance Rating (PROPER) 2010-2013, which listing in Indonesia Stock Exchange (IDX). The sample consists of 27 Companies selected from the population as much data as 28 the company. The results showed that: 1) corporate governance significant positive effect on environmental disclosure, and 2) environmental performance may moderate the influence of corporate governance to environmental disclosure.