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...

Despite a Sustainable Development Goals target to reduce trade mispricing and other illicit financial flows, it is not clear how to measure trade mispricing over time for countries worldwide. We aim to combine a broad coverage of countries by using UN Comtrade data and robustness by developing a...

An initiative is needed to break the logjam in the international negotiations to reform taxation of multinational enterprises (MNEs). The explosion of profit shifting observed since the 1990s has resulted in hundreds of billions of dollars of tax revenues being lost around the world each year -...

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...

"This book lays out what we know about the scale, history and impacts of tax abuse. From profit-shifting by multinational corporations to the exploitation of offshore tax havens. It sheds light on the people and organisations that enable tax abuse, and the stark social inequalities it creates....