Please I think it should be globally regulated and the retirement age should be 75years

I guess it should not be globally regulated because every state has its own pension legislature and it depends on many factors

Thanks to Imhade P. Okokpujie Aleksandr Alekseenko Uchendu Eugene Chigbu for your contributions.

As long as you are still able to contribute from your wealth of experience as a faculty member, you should be allowed to do so.

A mandatory retirement age could prove problematic in the U.S. The Age Discrimination in Employment Act prohibits employment discrimination against employees over the age of 40. To base employment decisions on age the employer must prove that age is a Bona Fide Occupational Qualification (BFOQ). Mandatory retirement age has most generally been upheld by the courts because of safety concerns, for example airline pilots. In Western Airlines v. Criswell the Supreme Court established a two-part test to establish a BFOQ defense to an age based qualification under the ADA. First, "The job qualifications which the employer invokes to justify his discrimination must be reasonably necessary to the essence of his business." Second, the "ADEA requires that age qualifications be something more than "convenient" or "reasonable"; they must be "reasonably necessary . . . to the particular business." In my opinion this would be a heavy burden for universities to prove.

Cada país tiene sus normas y leyes de jubilación al mismo tiempo las Universidades establecen sus propios requisitos, pero también depende de las condiciones físicas y mentales del profesor para establecer la edad de su retiro.

There is no basis for comparing retirement age of professors globally for many reasons. Because the intellectual strength and experience of professors are not the same. As long as a professor can meaningfully contribute to the developmentof faculty, there may be no need for retirement. In Nigeria for instance, after retirement, many professors with these qualities are re-engaged on contract basis for years.

The conditions of service vary widely across countries. There are also wide variations in the economic and social systems and the numerous factors that condition retirement in different countries. Pension schemes differ. There is no universal requirement for becoming a professor or universal basis for appointment. In fact, there are so numerous differences that will make global retirement age for professors unthinkable. Each country should work out what suits them best.

The global regulation of the retirement age for a Professor is mental and intellectual retardation. The biological age may not be an issue- but the mental and intellectual activeness of a continuously learning individual.

Retirement for Professors should not be restricted to age especially if they significantly contribute to knowledge production. Once we set a retirement age, it will cost government a lot of money to consult with them. Another thing, it goes down to how many young Professors the system is producing. We don't want to end up chasing quantity over quality.

Retirement depends on multiple factors such as psychological as well as financial. But apart from these population around the world varies on the bases of age. In some countries the people normally die in there 90s or early 100s where as some countries the age expectancy is 60 or some so retirement also depends on the geographical location one resides in.

My sincere thanks to my respected colleagues in person of Ademolawa Michael Adedipe , Greg Walterhouse , José Manuel Vázquez Godina , Adoga David , Chukwuma C. Nwuba , Ofelia Pacete , for their immense contributions to this discussion.

100 years, no less.