Organizing individual retirement accounts through the institutional market and with constrained choice could substantially lower administrative costs. The tradeoff: rebidding problems, weaker performance incentives, inflexibility in the face of unforeseen contingencies, and an increased...

What is the most cost-effective way to organize individual accounts that are part of a mandatory social security system? Defined-contribution individual account components of social security systems are criticized for being too expensive. The authors investigate the cost-effectiveness of two...