Making Cross-Border Banking Work for Africa (joint with Michael Fuchs, Dorothe Singer and Makaio Witte), June 2014. 

Vox eBook Banking Union for Europe: Risks and Challenges (Editor), October 2012.

Financing Africa - Through the Crisis and Beyond, (joint with Samuel Maimbo, Issa Faye and Thouraya Triki), World Bank: Washington DC. 2011. Datasets

Vox E-book Future of Banking, (Editor) October 2011. In PDF

Bailing out the Banks: Reconciling Stability and Competition, joint with Diane Coyle, Mathias Dewatripont, Xavier Freixas, and Paul Seabright. CEPR, 2010.

Entrepreneurship in Developing Countries, (Editor), Edward Elgar Publishing, 2009.

Finance for All? Policies and Pitfalls in Expanding Access, with A.Demirgüç-Kunt and P. Honohan, A World Bank Policy Research Report, Washington DC: World Bank, November 2007. Dataset 

Making Finance Work for Africa, with P. Honohan, World Bank, Washington, February 2007.