Using a unique data set with detailed information on Danish households and their mortgages, we show that young and old households are more likely to use IO mortgages compared to middle-aged households. Young households use IO mortgages to postpone repayment to a period with higher income, old...

We report on a series of economic decision-making experiments exploring how individuals make lifecycle consumption and saving plans when they face different income profiles. We find that for every income profile we consider, subjects on average over-consume in the early periods of life and...