People from cultural backgrounds where getting financial assistance from families is the norm are less likely to default on their mortgages, new research shows. This includes those from South East Asian countries. We also found in societies where the culture is to save more and for people to control their desires and instincts, the default on mortgages is lower. The findings are true both in relatively stable economic periods (2010-2013) and during a period of financial crisis (2008-2009). In analysing the factors behind mortgage delinquencies, we used data on default rates from 42 developed and developing countries. These countries represent about 90% of the world's gross national income and the world's outstanding balance of housing mortgages in 2013. The rate of people who defaulted on their mortgage varied from 0.05% in Hong Kong to 17.05% in Greece. Australia has a low default rate on mortgage, thanks to a strong level of national income, stable growth of the property market and a low unemployment rate. But it ranks high in all cultural dimensions that potentially lead to high default rate, this is accentuated during times of widespread economic hardship. So policymakers should be mindful of unfavourable economic conditions that may trigger default on mortgages.