(From Quartz.com):

Confession of an Ivy League teaching assistant: Here’s why I inflated grades

By Allison Shrager

The revelation that the median grade at Harvard is an A- prompted lots of discussion, especially among Ivy-league educated journalists. Some speculated high grades reflect intelligence. Others say professors just want their students to get jobs, or, selfishly, they want favorable teaching evaluations. As a teaching assistant in the economics department at Columbia, I too inflated student grades, but for none of those reasons.

I just didn’t want to deal with all the complaining. READ MORE HERE