Many employers have increased the default contribution rates in their retirement plans, generating higher employee savings. However, a large fraction of employers are reluctant to default employees into savings rates that are high enough to leave those employees adequately prepared for...

The objective of this paper is twofold. First we discuss, whether data envelopment analysis can be applied to households' consumption activities on the basis of Kelvin Lancaster's approach to consumer choice. Then, we apply data envelopment analysis to identify inefficiencies in a subsector of...