The flow of cash funds from employer-sponsored pension plans into mutual funds has been an important driving force behind the mutual fund industry\u27s unprecedented recent growth. The increased attractiveness of mutual funds to pension investors is due to a shift from defined benefit to defined contribution plans, to changes in the tax laws, and to the growing recognition of certain types of mutual funds as suitable long-term investment vehicles. Accompanying the tremendous growth in defined contribution plans, however, has been a shift in investment risk from employers to employees. Using the responses from a nationwide telephone survey of 2,000 mutual fund shareholders, this paper analyzes various characteristics and investment knowledge...