Richard Stone

Sir John Richard Nicholas Stone (30 August 1913 – 6 December 1991) was a British economist. He won the Nobel Prize in Economics in 1984.
Early life.
Stone was born on 30 August 1913 in London, England. He studied at the Cambridge University. 
Career.
In 1984, Stone received the Nobel Prize in Economics. He won the Nobel Prize for developing an accounting model that could be used to track economic activities on a national and, later, an international scale. 
He is sometimes known as the 'father of national income accounting', and is the author of studies of consumer demand statistics and demand modeling, economic growth, and input-output.
Personal life.
Stone was married to Winifred Mary Jenkins from 1936 until they divorced in 1940. Then he was married to Feodora Leontinoff from 1941 until her death in 1956. Then he was married to Giovanna Croft-Murray Saffi from 1960 until his death in 1991. Stone had one daughter, Caroline Stone.
Death.
Stone died on 6 December 1991 in Cambridge, England from pneumonia, aged 78.