McRibonomics NOV 09 2011
This is likely the best piece you'll read about the economics of the McRib and McDonald's motivation in its periodic reintroduction.
At this volume, and with the impermanence of the sandwich, it only makes sense for McDonald's to treat the sandwich as a sort of arbitrage strategy: at both ends of the product pipeline, you have a good being traded at such large volume that we might as well forget that one end of the pipeline is hogs and corn and the other end is a sandwich. McDonald's likely doesn't think in these terms, and neither should you.
Oh and speaking of pipelines:
And for its part, the McRib makes a mockery of this whole terribly labor-intensive system of barbecue, turning it into a capital-intensive one. The patty is assembled by machinery probably babysat by some lone sadsack, and it is shipped to distribution centers by black-beauty-addicted truckers, to be shipped again to franchises by different truckers, to be assembled at the point of sale by someone who McDonald's corporate hopes can soon be replaced by a robot, and paid for using some form of electronic payment that will eventually render the cashier obsolete.
There is no skilled labor involved anywhere along the McRib's Dickensian journey from hog to tray, and certainly no regional variety, except for the binary sort -- Yes, the McRib is available/No, it is not -- that McDonald's uses to promote the product. And while it hasn't replaced barbecue, it does make a mockery of it.