In an article in Sociological Science on “How Much Do You Have to Publish to Get a Job in a Top Sociology Department?”, John Robert Warren from the University of Minnesota shows that new assistant professors in sociology nowadays have to already have published about twice as much as their counterparts in the 1990ies had to. Trends for promotion to associate professor are not as dramatic but are still remarkable. How come? Money and the way things are organized, Dr Warren says.
To a layman like myself, the graph seems to indicate at least the possibility of some stabilization over recent years. But this possibility is not really treated at any length in the article.
Just for the fun of it: comic singer-songwriter Tom Lehrer once wrote a song about Sociology.