5 pages. Excerpt: For women, the shift from defined benefit to 401(k) plans is a 'good news/ bad news' story. When women are employed and accruing retirement income benefits, the news is good. 401(k) plans are better for short-tenured workers, and women are more likely than men tohave short tenures. Therefore, more women are likely to end up with more benefits and their benefits are likely to be larger when they have a401(k) plan rather than a traditional defined benefit plan.