Release: NBER Macrohistory Database
This Variable Is The Percentage Unemployed Subtracted From The Whole Workforce (100%). Quarters Ending On March 31St, June 30Th, September 30Th And December 31St. Source: Computed By NBER From Unemployment (Due To Lack Of Work Or Material) Data In Annual Report On The Statistics Of Labor, 1923, Part Iii, P.20-21. Massachusetts Department Of Labor And Industries.
This NBER data series q08007 appears on the NBER website in Chapter 8 at http://www.nber.org/databases/macrohistory/contents/chapter08.html.
NBER Indicator: q08007
National Bureau of Economic Research, Employment Trade Union Members for Massachusetts [Q08007US000MAQ519NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/Q08007US000MAQ519NNBR, December 10, 2016.