MATTHEW GUERRIERI diagnoses the music industry with a different problem:  Baumol's cost disease.  I'm not sure I'm entirely convinced.  How much of the cost of a concert at Lincoln Centre is paying the musicians, against air conditioning, electricity, absurdly expensive Manhattan real estate, finding the special tiny little wine glasses that crack if you grip them too tightly, and so forth?  But I am open to evidence.

(h/t Tyler Cowen