Tenure commonly refers to academic tenure systems, in which professors (at the university level)—and in some jurisdictions schoolteachers (at primary or secondary school levels)—are granted the right not to be dismissed without cause after an initial probationary period. Tenure systems are usually justified by the claim that they provide academic freedom, by preventing instructors from being dismissed for openly disagreeing with authorities or popular opinion. Such systems may also have an economic rationale, similar to the rationale for senior partner positions in many law and accounting firms, in that employees who cannot be replaced may be more likely to give accurate assessments of more junior colleagues who might otherwise threaten their positions. Another reason tenure exists is that, in the realm of academic and intellectual pursuits, individuals may produce higher quality output when they have job security than when they don't. When they have the job security and autonomy of a tenured position, academics are able to pursue their own topics of interest, which they are usually more passionate about, and produce better results. Without job security, they will generally attempt to measure what pursuits they are "supposed to" follow, and in imitation of those guidelines, produce a lower quality of output.
Academic tenure is associated with university and college systems in North America, where it underpins employment; however, it is increasingly rare in other places. It became politically unpopular worldwide from the 1970s, where opponents charged that it removed incentives for its holders to be productive and unfairly relieves professors of the economic uncertainty felt by other workers. In addition, declining numbers of tenure-track positions in North America, against rising student numbers, have led to an unintended consequence: the emergence of a large scholarly underclass. For example, most US universities now supplement tenured professors with non-tenured s, who teach classes on a contract basis for relatively low wages and few benefits. For these and other reasons, tenure was officially restructured in public universities in the United Kingdom by the Thatcher government in the 1980s. It has ceased to be offered in some parts of Australia (but not in New Zealand where tenure is referred to as confirmation) and in most European countries, and it has repeatedly come under attack at state universities in the United States.
The academic department will then vote to recommend the candidate for tenure based on the tenure-eligible professor's record in teaching, research, and service over this initial period. The amount of weight given to each of these areas varies depending on the type of institution the individual works for; for example, research intensive universities value research most highly, while more teaching intensive institutions value teaching and service to the institution more highly. The department's recommendation is given to a tenure review committee made up of faculty members or university administrators, which then makes the decision whether to award tenure, and the university president approves or vetoes the decision.
A candidate denied tenure is sometimes considered to have been dismissed, but this is not entirely accurate: employment is often guaranteed for a year after tenure is denied, so that the non-tenured professor can conduct an extended search for new employment. Also, some prestigious universities and departments in the US award tenure so rarely that being denied it is scarcely an insult.
Professors who have earned tenure at one institution are often offered tenure along with any new position (as "senior hires"); otherwise, tenured faculty would rarely leave to join different universities.
Outside the US, a variety of contractual systems operate. Commonly, a less rigorous procedure is used to move staff members from temporary to "permanent" contracts. Permanent contracts, like tenure, may still be broken by employers in certain circumstances: for example if the staff member works in a department earmarked for closure.
There is some debate about the effects and desirability of academic tenure. Not all universities offer tenure.
Tenure may allow academics who express controversial views, like Ward Churchill, to be unaccountable to taxpayers or employers for comments or positions. However, this protection from retaliation might be a benefit of tenure, as it expands discourse on subjects that otherwise may be too sensitive to address. Opponents state that public funding should be accompanied by some measure of control over content and that the higher educational system should not continue to support those with offensive or objectionable stances. An obvious difficulty in this stance is the question of what should be judged to be objectionable, and by whom. Another point is that such control attacks academic freedom, not just tenure.
Others criticize tenure for allowing professors, once tenured, to be less concerned with performance in all areas, reasoning that their jobs are relatively secure. This also reduces the free flow of faculty to industry, as they may be reluctant to give up the benefits and security of tenure. Such a restriction may not be beneficial for the economy.
Another criticism of tenure is that when legal and just causes do arise to revoke tenure, it is often accompanied by a protracted and expensive legal battle that would not be necessary without the tenure system. But, this also means that faculty may take unpopular positions within the school on pedagogical matters, such as opposing grade inflation.
Finally, while in some cases tenured faculty may be laid off for financial exigency or the closure of a department (if their tenure is by department), at many schools tenured professors cannot be dismissed if their discipline is no longer viable based on interest from students or research funding grants (if their tenure is by college). Untenured professors, however, can be laid off. Advocates of tenure say this encourages continued research in neglected areas, while opponents say that it wastes money on fields that might otherwise shrink or die out and prevents colleges from redirecting their funds to more relevant areas and responding to changing conditions.