This paper by the late, great Nick Crafts, on competition and productivity in the UK, well worth a read: cepr.org/voxeu/column...
cepr.org
Competition cured the “British Disease”
Britain’s relative economic decline throughout the 20th century – the so-called “British disease” – was a national embarrassment that only went away in the 1980s. This column presents new research showing that competition provided the cure. Only when Britain returned to a regime of competition and openness similar to that which had prevailed before World War I did productivity growth resume.
Hm, I can see myself having to say pretty often that enforcing competition so markets work in the interests of customers means there is *less* need for regulation of other kinds.