Figure 1
Defined Contribution Plans vs. Defined Benefit Plans
Defined Contribution Plans vs. Defined Benefit Plans
70%
Defined Contribution Plans
60%
Defined Benefit Plans
50%
40%
30%
20%
10%
0%
1985
1993
1999
Yeer r
Ya a
SourcSo:uEe: Emolyyee BennetfRtesearseansthutInsnitutve,standt InveanmInstituC.ompany Institute.
e rcmpl p oee B e efi i Re ch I rcit e, atd In e men Compsty ent te
assets--roughly $1.5 trillion. Named for the
nomenon is real. But the degree of job transi-
section of the Internal Revenue Code that
tion leakage that actually occurs in DC
defines them, 401(k)s allow employees to
accounts is large when the account is small
accept a portion of their wages as "deferred
and the worker is young, small when he is
contributions," usable for investment but
mature and his accumulation considerable.
not for current consumption.
Samwick and Skinner have found that a typ-
In 1998, a worker in a qualified plan
ical worker may change jobs five times, with
could contribute as much as $10,000 per
most of the changes concentrated early in his
year into a personal retirement account. He
career. Samwick and Skinner found that "the
could allocate his contribution among the
probability of reinvesting lump-sum distrib-
Given more free-
investment options provided in his plan--
utions . . . rises steadily with age, and is 48
dom to choose,
typically stock or bond mutual funds. His
percent for those age 35 to 44, 57 percent for
workers saved
income taxes on the contributions were
those age 45 to 54, and 73 percent for those
deferred until the funds were withdrawn. If
age 55 to 64."
more for their
he liquidated his investments prior to
Even after incorporating job-change
retirement rather
retirement, he would generally pay a 10 per-
leakage into their model, Skinner and
than less.
cent penalty in addition to taxes due.
Samwick calculated that worker benefits
Compared with IRAs, 401(k)s offered
under DC plans are 135.5 percent greater
employees higher contribution limits and
on average, and 50.3 percent greater at the
(generally) an employer match. When the Tax
median, than worker benefits under DB
Reform Act of 1986 forced many workers to
plans. Given more freedom to choose, workers
choose between them, 401(k)s replaced IRAs
saved more for their retirement rather than less.
as the most popular tax-deferred savings
401(k) Plans
vehicle for workers.
Assets in 401(k)s increased from $92 bil-
One type of plan held 68 percent of DC
7