RT Journal Article SR Electronic T1 Does Contractual Form Matter? The Impact of Different Types of Non-Tenure Track Faculty on College Students’ Academic Outcomes JF Journal of Human Resources JO J Hum Resour FD University of Wisconsin Press SP 0117-8505R DO 10.3368/jhr.54.4.0117.8505R A1 Ran, Florence Xiaotao A1 Xu, Di YR 2018 UL http://jhr.uwpress.org/content/early/2018/05/01/jhr.54.4.0117.8505R.abstract AB We examine the impact of non-tenure track faculty by type of employment on students’ academic outcomes in two- and four-year colleges using a two-way fixed effects model and an instrumental variable approach. We also examine how the estimated effects on student outcomes can be explained by observable instructor characteristics and employment features. We find that non-tenure track faculty have positive impacts on current course grades but negative impacts on subsequent course outcomes. These negative impacts are stronger for non-tenure track faculty hired through temporary appointments than those hired with long-term contracts, which can be explained partly by observable instructor characteristics.