Tax-qualified retirement plans seek to promote saving for retirement, yet most employers permit pre- retirement access by letting 401(k) participants borrow plan assets. This paper examines who borrows and why, and who defaults on their loans. Our administrative dataset tracks several hundred...

Most active 401(k) participants have the option of borrowing from their retirement accounts, and nearly 40 percent do so over a five-year period. We show that employers' loan rules have a strong endorsement effect on borrowing patterns; that is, in plans allowing multiple loans, participants are...

Tax-qualified retirement plans seek to promote saving for retirement, yet most employers permit pre- retirement access by letting 401(k) participants borrow plan assets. This paper examines who borrows and why, and who defaults on their loans. Our administrative dataset tracks several hundred...