Complex sentence: Ernst Friedrich "Fritz" Schumacher (16 August 1911--4 September 1977) was an internationally influential economic thinker, statistician and economist in Britain, serving as Chief Economic Advisor to the UK National Coal Board for two decades.
Split into simpler sentences: Ernst Friedrich "Fritz" Schumacher (16 August 1911--4 September 1977) was an internationally influential economic thinker with a professional background as a statistician and economist in Britain. He served as Chief Economic Advisor to the UK National Coal Board for two decades.