20 years ago, EclectEcon advocated getting rid of the penny. Several years ago, Greg Mankiw joined the club. And now Russ Roberts has joined, too.
As several people have pointed out, and as my previous posting on the topic showed, businesses have long been on board with "penny cups" next to the cash registers, and some are beginning to post signs that theirs is a "penny-free environment".
My expectation is that soon pennies will disappear. But it would likely be efficient for gubmnts to hasten their demise.
For more from my testimony before a Senate committee on eliminating the penny, see this.