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The purpose of this study is to analyze the effect of transparency disclosure index on firm value. The indices used in this study are OECD (Organization of Economic Co-operation and Development) and GRI (Global Reporting Iniciatives) index. OECD index will be divided into two indices consists of MDI and VDI to analyze the effect of mandatory and voluntary disclosure on firm value. The sample of this study is the companies that are listed on Indonesia Stock Exchange and Kompas-100 in the year 2010 to 2012. The result are vary, but most of the results shows that there are negative and significant relationship between transparency and disclosure which measured by OECD, MDI, VDI, and GRI indices on the firm value.

OECD; GRI; Firm Value; MDI; VDI, Transparency; Disclosure