... D., K. McQuinn and G. O’Reilly (2009). “Modelling Credit in the Irish Mortgage Market,” Economic and Social Review 4 0: 371-392. Aït-Sahalia, Y., J. Andritzky, A. Jobst, S. Nowak and N. Tamirisa ... T., and J. Fitzgerald (2009). “Managing Housing Bubbles in Regional Economies under EMU: Ireland and Spain,” working paper no. 315, Economic and Social Research Institute, Dublin, Ireland. ... subprime borrowers had poor credit histories and undocumented income. They lacked the two essential ingredients normally demanded of borrowers: a substantial down payment and a verifiable source...