Mian, A. and Sufi, A. (2007). “The Consequences of Mortgage Credit Expansion: Evidence from the 2007 Mortgage Default Crisis”, NBER Working Paper 13936. Schmiedel, H. (2007), “The Economic Impact of the Single Euro Payments Area”, European Central Bank Occasional Paper Series, No. 71, 2007. Stiroh, K. J. (2008), “Diversification in Banking”, in A. Berger, P. Molyneux and J. Wilson (eds.
), Handbook of Banking, Oxford University Press. BIS Review 127/2008  11