Lawrence Klein: Gwahaniaeth rhwng fersiynau

[[Economegydd]] o [[Americanwr]] oedd '''Lawrence Robert Klein''' ([[14 Medi]] [[1920]] – [[20 Hydref]] [[2013]])<ref>{{dyf gwe |iaith=en |url=http://www.independent.co.uk/news/obituaries/obituary-professor-lawrence-klein-8907562.html |teitl=Obituary: Professor Lawrence Klein |gwaith=[[The Independent]] |awdur=McDonough, Megan |dyddiad=27 Hydref 2013 |dyddiadcyrchiad=30 Hydref 2013 }}</ref> a enillodd [[Gwobr Economeg Nobel]] ym 1980 "am greu modelau [[econometreg|econometrig]] a'u cymhwyso at ddadansoddi [[anwadaliad economaidd|anwadaliadau economaidd]] a [[polisi economaidd|pholisïau economaidd]]".<ref>{{dyf gwe |iaith=en |url=http://www.nobelprize.org/nobel_prizes/economic-sciences/laureates/1980/ |teitl=The Sveriges Riksbank Prize in Economic Sciences in Memory of Alfred Nobel 1980 |cyhoeddwr=[[Sefydliad Nobel]] |dyddiadcyrchiad=30 Hydref 2013 }}</ref> Addysgodd economeg ym [[Prifysgol Pennsylvania|Mhrifysgol Pennsylvania]] am 33 mlynedd.<ref>{{dyf gwe |iaith=en |url=http://www.nytimes.com/2013/10/22/business/economy/lawrence-r-klein-economist-who-forecast-global-trends-dies-at-93.html |teitl=Lawrence R. Klein, Economic Theorist, Dies at 93 |gwaith=[[The New York Times]] |awdur=Rifkin, Glenn |dyddiad=21 Hydref 2013 |dyddiadcyrchiad=30 Hydref 2013 }}</ref>