For A List Of Items Considered Under Semi-Manufactures, See Bulletin 572 (1931) P. 11. After 1951 No Index Is Available That Can Be Used To Continue This Series. The "Economic Sector" Index Called "Intermediate Materials And Components For Manufacturing" Contains A Great Many Finished Products Such As Machinery And Machine Tools Which Would Have To Be Eliminated To Derive Comparable Estimates. Source: Bls Bulletins, Nos. 543 Pp. 34-36 (1930), 572 Pp.12-13 (1931), And "Wholesale Prices", Through 1941; Bls Bulletins On Wholesale Prices, Nos. 736, 785, 870, 877, 920, 947, 973, And 1007 For 1942-1949; Bls Mimeographed Releases On Wholesale Prices, For 1950- 1951.
This NBER data series m04168 appears on the NBER website in Chapter 4 at http://www.nber.org/databases/macrohistory/contents/chapter04.html.
NBER Indicator: m04168
Release: NBER Macrohistory Database
National Bureau of Economic Research, Index of Wholesale Prices of Semi-Manufactured Goods for United States [M04168USM336NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/M04168USM336NNBR/, July 28, 2015.