When "demand can't keep up with supply"

Headlines catch my eye more often than subheadlines, but the story below was the exception that proves the rule (a confusing saying in itself, until you realize that "proves" can mean "tests" as in proof reading...) 

The WSJ reports that pork producers are having a problem that is usually associated with some kinds of production in planned economies: demand can't keep up with supply of pork. It makes you wonder if prices are also an issue...

We’re Not Eating Enough Bacon, and That’s a Problem for the Economy. The American pork industry has become so efficient that demand can’t keep up with supply.  By Patrick Thomas

"The American pork industry has a problem: It makes more tenderloin, ham, sausage and bacon than anybody wants to eat. 

"From giant processors to the farmers who supply them, they are in a predicament largely of their own making. They made production so efficient that demand can’t keep up with supply. "