Why do healthy firms freeze their defined-benefit pension plans?

We examine the firms' decisions in freezing their defined-benefit pension plans and the effect it has on shareholders' wealth. Plan freezes help relieve sponsors of the implicit promises made to employees regarding future compensation. We find evidence that a pension plan freeze has a positive impact on sponsors' equity returns and credit ratings. Firms that choose to freeze their pension plans experience an increase in equity return and a decrease in the probability of a credit downgrade.