National Accounts articles, Methodological improvements to National Accounts for Blue Book 2016: Market/non-market output (P.131/P.132) and social transfers in kind (D.631/D.632) for government 24 February 2016 By Publishing team National Accounts articles, Methodological improvements to National Accounts for Blue Book 2016: Market/non-market output (P.131/P.132) and social transfers in kind (D.631/D.632) for government