Sebastian Mallaby reminded me about the cost of the penny today (my disdain towards carrying cash leads me to not having to see pennies very often).
You can look for yourself as to what tons of people are saying on the topic by searching “zinc lobby” in Google.
Even though Greg Mankiw is blogging with more purpose these days considering that the attention of his class is somewhat drawn to his blog, a caveat to the academic year starting is that we might not get as many of these posts from Greg.
Here is Steven Levitt and Stephen Dubner on the topic. If anyone can provide a link for me to a good argument for keeping the penny, leave it in the comments.
UPDATE: Hey, I think Greg subscribes to Sebastian Mallaby too.