Superstars and Niche Products
Bob's story of Alfred Marshall and the piano industry is particularly noteworthy and, I am embarrassed to say, new to me.
Addendum: In the article, Bob mentions his sons' music group. For those interested, here it is:
Random Observations for Students of Economics
I am the Robert M. Beren Professor of Economics at Harvard University, where I teach introductory economics (ec 10). I use this blog to keep in touch with my current and former students. Teachers and students at other schools, as well as others interested in economic issues, are welcome to use this resource.