Last week I wrote about supply chain problems. I experienced that first hand a couple of days ago when I was looking for something online. The company posted a notice about the issue on their home page. When I clicked on a product, more often than not it showed “not in stock” with a future date it was expected.

I came across an unusual shortage the other day. The National Diaper Bank Network says supplies are tight and prices rising. Diaper banks help needy families. One in three American families has a “diaper need,” according to the American Diaper Network. What is a diaper need, or for that...