Private equity took Jamie Dimon's warnings to heart. Here's why.

Jamie Dimon

Ludovic Marin/Pool via Reuters; Rebecca Zisser/BI

• JPMorgan recently drew a line in the sand over private equity's recruiting of its newbie bankers.
• Within days, Apollo and General Atlantic said they would bow out of the practice this year.
• Here are some of the other factors that may have played a role in their decision.

When Jamie Dimon speaks, people listen.

Early last week, the JPMorgan CEO blasted the practice of private equity firms hiring junior bankers for future-dated jobs.