The report focuses on the complementarities between trade, investment and competition policies and analyses how policy coherence can be promoted in these three important areas that shape incentives for firms and individuals to be more productive and for markets to be more competitive. It also deals with the potential inconsistencies or tensions that may arise between trade, investment and competition reforms and how to ease them. It shows that specific policy goals can be achieved while maintaining an open and procompetitive environment. Overall, the analysis highlights the role of governments in providing the right incentives to facilitate the adjustment to the internationalisation of production and the important synergies between policies that can be exploited to promote growth. It is not only the case in contestable markets but also in the context of market failures where pro-competitive policies can address specific distortions and mitigate the adverse effects of reforms. The report includes the results of a survey collecting the experience of policymakers on complementarities between trade, investment and competition policies.