All this drama has diverted attention from another bigchange in recent years: the largely peaceful absorption of a huge number of migrants, both legal and illegal.
Integrated retailers make big buys of a relatively small number of items and, in the Millennial category, they often change out the merchandise every month or two as preferences change.
Hollywood's ability to respond quickly to change has helped the film business to remain stable, with the same number of big studios now as in the early 20th century.