@mahler123 I’d be most interested in reading that article if it is available. I did a search with no success. Would you be so kind as to pont me in the right direction?
I think that the quite sustained increase in inequality (in both relative and absolute terms, generally since about 2008, but most certainly and dramatically in the last year or so) may also explain certain aspects that have been explored recently in a recent/current thread about bricks and mortar stores and sales practices.