Defined Contribution Pensions: Plan Rules, Participant Choices, and the Path of Least Resistance
By James J. Choi, David Laibson, Brigitte C. Madrian & Andrew Metrick Over the last 20 years, defined-contribution pension plans have gradually replaced defined benefit pension plans as the primary privately sponsored vehicle to provide retirement income. At year-end 2000, employers sponsored over 325,000 401(k) plans with more than 42 million active participants and $1.8 trillion in assets.1 The growth of 401(k)-type savings plans and the associated displacement of defined benefit plans have generated new concerns about the adequacy of employee...
