[Excerpt] This extraordinary volume is one that all people interested in the unemployment insurance (Ul) system will want to read. Although research on a wide variety of aspects of the Ul system has been published in many articles and monographs in recent years, this volume represents an attempt to summarize what is known about many aspects of the subject in one place, to provide some new findings, and to speculate about future research and policy directions. The thirteen included papers, written by a mix of scholars and practitioners, are revisions of a set of papers that were originally presented at a 1986 conference.