Catao, L.A.V. and Fostel, A. and Kapur, Sandeep (2011) Default traps. In: Kolb, R.W. (ed.) Sovereign Debt: from safety to default. Oxford, UK: Wiley. ISBN 9780470922392.

Catao, L.A.V. and Fostel, A. and Kapur, Sandeep (2009) Persistent gaps and default traps. Journal of Development Economics 89 (2), pp. 271-284. ISSN 0304-3878.

Catao, L.A.V. and Fostel, A. and Kapur, Sandeep (2008) Persistent gaps and default traps. Working Paper. Birkbeck College, University of London, London, UK.

Catão, L. and Fostel, A. and Kapur, Sandeep (2007) Persistent gaps, volatility types and default traps. Working Paper. International Monetary Fund.