A statistical study of construction productivity from 1917 to 1957. - Page 37 |
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27 :
the onsite labor portion of these totals can only be estimated.
These difficulties are recognized by the United
States Department of Commerce which states:
Modern techniques of systematic reporting and sampling are difficult to apply to the direct statistical measurement of construction activity.
Many of the producers that should be covered are hard to identify. Much construction work is done by firms only intermittently attached to the industry; many construction firms have no fixed and readily recognizable place of business; and any firm in any industry may undertake force account projects. . . .
The alternative of covering the purchases of construction
work is generally subject sort of difficulties.2 to the same
There have, however, been several published attempts
to estimate construction productivity. Each of these is
discussed separately in the following pages.
I. THE MCGRAW-HILL SURVEY (1939-19H7)
The editors of Engineering News Record, a McGraw-
Hill publication, attempted to measure productivity by
direct questionnaire to a selected list of contractors
starting in 1939. The survey had hardly started when World
War II intervened and the survey was discontinued. Starting
again in 1 9 i|-6 it was maintained for about three years and
then dropped in March of 191^-9. 3 ■ |i
2United States Department of Commerce, National !
Income Division, National Income and Product of the United
States, 1929-1950? A Supplement to the Survey of Current Business (Washington: Government Printing Office, 1951)? p. 2 1 6 . ;
-^"Construction Labor Productivity," Engineering News I
Record, CXXXVIII (April 17,_____19^7)? 92; "Construction _|
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| Title | A statistical study of construction productivity from 1917 to 1957. - Page 37 |
| Repository email | cisadmin@lib.usc.edu |
| Full text | 27 : the onsite labor portion of these totals can only be estimated. These difficulties are recognized by the United States Department of Commerce which states: Modern techniques of systematic reporting and sampling are difficult to apply to the direct statistical measurement of construction activity. Many of the producers that should be covered are hard to identify. Much construction work is done by firms only intermittently attached to the industry; many construction firms have no fixed and readily recognizable place of business; and any firm in any industry may undertake force account projects. . . . The alternative of covering the purchases of construction work is generally subject sort of difficulties.2 to the same There have, however, been several published attempts to estimate construction productivity. Each of these is discussed separately in the following pages. I. THE MCGRAW-HILL SURVEY (1939-19H7) The editors of Engineering News Record, a McGraw- Hill publication, attempted to measure productivity by direct questionnaire to a selected list of contractors starting in 1939. The survey had hardly started when World War II intervened and the survey was discontinued. Starting again in 1 9 i|-6 it was maintained for about three years and then dropped in March of 191^-9. 3 ■ |i 2United States Department of Commerce, National ! Income Division, National Income and Product of the United States, 1929-1950? A Supplement to the Survey of Current Business (Washington: Government Printing Office, 1951)? p. 2 1 6 . ; -^"Construction Labor Productivity," Engineering News I Record, CXXXVIII (April 17,_____19^7)? 92; "Construction _| |
