The Extractive Industries Transparency Initiative (EITI) is a transnational multi-stakeholder regime that governs transparency and accountability in the extractives sector. Its aim is to develop a global standard for transparency in the operations and governance of the extractives sector, particularly in resource-rich developing countries. Variations between EITI implementing countries make it challenging to evaluate the effectiveness of such a multi-stakeholder partnership. This chapter approaches EITI effectiveness through the fifth pathway of the analytical framework. It discusses the results of an econometric analysis of EITI effectiveness that uncovers the pathways through which investor confidence is impacted by EITI membership. The chapter proposes that the effectiveness of EITI can be assessed through the lens of investor expectations on transparent resource revenue management.