Unionization and tenure and rank outcomes in Ohio Universities

We explore whether unionization affects tenure and promotion outcomes. Using data on 4,276 faculty from seven Ohio public universities, we find that unionization increases the probability that an individual will be tenured. Unionization also increases (decreases) the probability that an individual will be a full (assistant) professor. Moreover, unionization may standardize the promotion process across disciplines. The largest effect on the promotion process is related to length of service. Faculty who are with an institution longer are more likely to be tenured or in higher ranks. This result occurs for two reaization (1) The tenure and promotion processes are directly related to the number of years an individual works at an institution. Tenure decisions usually have time limitations, and although promotion decisions are not as directly tied to time, one generally becomes a full professor after the attainment of tenure and the rank of an associate professor; (2) Controlling for other factors, senior union faculty are more likely to be tenured or full professors, and they appear to be able to obtain higher ranks more easily. Our thanks to the session participants at the 1996 Missouri Valley Economics Association Conference, to Professor Michael Magura of the University of Toledo who provided most of the data and to an anonymous referree for insightful comments.