The Times features a Room-For-Debate about hiring on the tenure-track at colleges and universities prompted by a Chronicle of Higher Ed piece that focused more broadly on the macroeconomy's impact on hires and leaves in academia.
I felt like almost all the contributors to the Times piece said the real issue was adjunct or part-time labor being increasingly substituted for tenure-track or full-time labor. Those who didn't took on the issue of whether the tenure system was a good idea or how it could be improved. Few had anything to say about the inflows and outflows per se.
CUNY is experiencing a wave of early retirements this fall, induced by financial incentives. But the majority of them seem to be among staff rather than faculty. What motivates faculty to become emeritus or not?