International corporate tax is an important source of government revenue, especially in lower-income countries. An important recent study of the scale of this problem was carried out by International Monetary Fund researchers Ernesto Crivelli, Ruud De Mooij, and Michael Keen. We first...

Illicit financial flows constitute a global phenomenon of massive but uncertain scale, which erodes government revenues and drives corruption in countries rich and poor. This text offers a critical examination of existing data and methodologies, identifying the most promising avenues for future...

Illicit financial flows (IFFs) threaten countries' ability to achieve the Sustainable Development Goals (SDGs). Progressing on the IFFs target is thus crucial, as is the ability to measure achieved progress. In this paper we explore how to best statistically measure tax avoidance by...

The geography of corporate profit shifting is often presented in public discourse in simplistic and inaccurate terms. Not only can this easily mislead audiences, but it shapes political responses to the problem in such a way as to undermine the prospects for genuine progress. In this paper, we...

Fully public country-by-country reporting would enable a dramatic shift in the accountability of both multinationals and tax jurisdictions. Estimates of the losses due to tax avoidance imply that lower-income countries would benefit disproportionately, as this transparency would offer powerful...

This paper reviews the prospects for a global public database on the tax contributions and economic activities of multinational companies. It is divided into four main sections. Firstly, we present a set of user stories, questions, requirements, and scenarios of usage for a database. Secondly,...