Kasper M. Nielsen
Hong Kong University
of Science and Technology
Hong Kong SAR
NBER Working Papers and Publications
|July 2015||Inattention and Inertia in Household Finance: Evidence from the Danish Mortgage Market|
with Steffen Andersen, John Y. Campbell, Tarun Ramadorai: w21386
A common problem in household finance is that households are often inactive in response to incentives. Mortgages are generally the largest household liability, and mortgage refinancing is an important channel for monetary policy transmission, so inactivity in this setting can be socially costly. We study how the Danish population responds to mortgage refinancing incentives between 2010 and 2014, building an empirical model that identifies two important sources of inactivity: inattention (a low probability of responding to a refinancing incentive in a given quarter), and inertia (a psychological addition to the financial cost of refinancing). Inertia is hump-shaped in age and generally increasing in socioeconomic status, while inattention is highest for older households and households with ...