We've seen some concentration over the last 30 years or so. It hasn't been about regulations, though. In actually, the remaining companies first aggressively ex

We've seen some concentration over the last 30 years or so. It hasn't been about regulations, though. In actually, the remaining companies first aggressively extended their selections of products and lowered prices, only to backtrack significantly on both, as the competition was gone, with about 2 big conglomerates remaining.