In my experience (new professor), 90-95% of the work is done by grad students.
A good prof in my mind acts a mentor, providing frequent feedback on the research and contributes to writing of the paper. The feedback is often invaluable, but still just a small part in the overall amount of work compared to what the student puts in.
A good prof in my mind acts a mentor, providing frequent feedback on the research and contributes to writing of the paper. The feedback is often invaluable, but still just a small part in the overall amount of work compared to what the student puts in.