Like many growing up in the 1970s, I was taught to eat everything on my plate. It was good advice, particularly as an active kid growing up in a rural setting. Now that my metabolism isn't that of an active teenager, there are items I choose to leave on the plate.

A similar discussion has been evolving in investment markets. Is it better to eat everything on the plate, or can the discretion to leave out undesirable exposures improve investment outcomes?