Approved for public release; distribution is unlimited / Experts believe that draft would require a larger number of accessions, since draftees and draft-motivated volunteers are more likely to leave military service than volunteers at their first opportunity. This thesis presents evidence on this issue. We are able to compare retention behaviour and service lengths of draftees and volunteers in the same cohort by using data files consisting of enlistees during lottery draft years. / http://archive.org/details/retentionbehavio00gurk / Lieutenant, Junior Grade, Turkish Navy