External Seminar by Agnes Kovacs (King’s College London & IFS)

To disentangle their relative importance, we estimate a model of household behavior that allows for the possibility that housing acts as a savings commitment device. Identification is achieved using novel evidence on consumption growth dynamics. We then use the estimated model to study the macroeconomic and welfare implications of giving households greater access to home equity. We find that the welfare cost of weakened commitment is substantial: approximately 1.7 times larger than the benefit of improved consumption smoothing. Both channels contribute equally to a 2.5 percentage point decline in the personal saving rate. Welfare could be improved using alternative mortgage policies that better balance the trade-off between flexibility and commitment.