A colleague of mine, knowing my interest in such things, notified me of a change in the size of our blue exam books, from 8 3/8 x 6 3/4, 12-page to 8 1/2 x 11, 24-page:
“How interesting,” I thought. I began to hypothesize: “I wonder if they had complaints about the old smaller books. I wondered if students filled more than one during exams and faculty ran into problems grading multi-book responses. Or perhaps more exams were requiring more writing. Wouldn’t that be something!” So I wrote to our bookstore manager to inquire about the reason for the change. The answer?
We ran out. We will replentish (sic) and have both sizes.
Ah, of course. How silly of me to forget Occam’s razor: The simplest answer is usually preferable.