This document discusses transparency in relation to BEPS (Base Erosion and Profit Shifting) and the OECD's Action Plan to address it. It outlines key actions from the plan that aim to increase transparency, such as requiring disclosure of aggressive tax planning arrangements, re-examining transfer pricing documentation rules, and developing dispute resolution mechanisms. The document also discusses how transparency relates to good governance, noting perspectives from Adam Smith, the UN, World Bank and OECD. It argues that while BEPS approaches the issue militarily, states also bear responsibility for issues like tax havens due to aggressive tax competition and lack of transparency and simplicity in the international tax system.