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Massachusetts Institute of Technology

The Propensity to Borrow out of Expected Permanent Income

Abstract

dc:description.abstract

One prediction of the Permanent Income Hypothesis is that households who are illiquid may wish to borrow against future income when there is a positive shock to their future income process. We informally model this prediction in a two-period setting and then test it using Equifax data. We demonstrate that Democrats experience a strong, positive shock to their expectations about their future real income around the 2020 presidential election. Our difference-in-difference analysis finds that in response Democrats were 0.08% more likely to take on debt in order to buy a car, and that their outstanding auto loan balance increased by $104 on average. Compared to the rate at which Democrats purchased cars via loan prior to the election, this 0.08% increase represents a 1.37% increase in the purchase rate. We validate our results by finding a similar result holds for installment loan purchases. We show that this result is robust to our empirical assumptions.

Degree

thesis:*
Name thesis:degree_name
Master
Department dc:contributor.department
Sloan School of Management
Grantor dc:publisher
Massachusetts Institute of Technology
Year dc:date.issued
2023

Author and committee

dc:creator, dc:contributor.*
Author dc:creator
  • Wilson, John
Advisor dc:contributor.advisor
  • Palmer, Christopher

Rights

dc:rights
Statement dc:rights
  • In Copyright - Educational Use Permitted
  • Copyright retained by author(s)

Identifiers

dc:identifier.*
Handle dc:identifier.uri
https://hdl.handle.net/1721.1/151232
OAI identifier oai:identifier
oai:dspace.mit.edu:1721.1/151232

Chain of custody

source
Harvested from
MIT
Base URL
dspace.mit.edu/oai/request
Last updated
2026-07-22
Source record
OAI-PMH GetRecord
related terms
citation

Wilson, John. The Propensity to Borrow out of Expected Permanent Income. Massachusetts Institute of Technology, 2023. https://hdl.handle.net/1721.1/151232