The Economic Naturalist by R. H. Frank

http://www.robert-h-frank.com/book.html

http://www.robert-h-frank.com/ENIntroduction.pdf

[from the Introduction]

In short, the human brain’s specialty seems to be absorbing
information in narrative form. My economic naturalist writing
assignment plays directly to this strength. It calls for the title of
each student’s paper to be a question. For three reasons, I have
found it useful to insist that students pose the most interesting
questions they can. First, to come up with an interesting question,
they must usually consider numerous preliminary questions, and
this itself is a useful exercise. Second, students who come up with
interesting questions have more fun with the assignment and
devote more energy to it. And third, the student who poses an
interesting question is more likely to tell others about it. If you
can’t actually take an idea outside the classroom and use it, you
don’t really get it. But once you use it on your own, it is yours
forever.