SEASONAL FLUCTUATIONS
CHART 53
SEASONAL FLUCTUATIONS IN CONSTRUCTION.
Average of twelve months = 100
Ea 150 FIG B }
|co—e=NY. Signy and Street Labor
+ 0+— = Wisconsin Building Employment |
, oR
25k 125 : A
20 p— 100+
t/ fa
|
or fu ; Forses Sims
== bo--—o= Permits Lott er ed
ce—e = NY. Building and Street Labor >-—o=Building Employment
de--—e = Mass. Building Employment 2b cities, i9ze.
I= “STQIN]D) 50 TIE aT LFT=—
 =Highway'
Employment
ou >—e=Building Employment} —,
(composite) i
~—o=Construction Emplo ment]
. omar
CIZl# ATTA TTT ATs
sSources:
Curve a = seasonal indices of the value of contracts awarded in 27 northeastern
states, January, 1910, to June, 1922, computed by Mr. J. B. Hubbard, Review of
Economic Statistics, January, 1924, p- 35.
Curve b = the value of permits in 66 selected cities, 1910-1922, ibid. i
Curve d = unemployment inverted, computed from percentages of trade union
building workers unemployed at the end of each quarter. The seasonal indices
are: Mar. 31, 92.8; June 30, 105.6; Sept. 30, 107.9; Dee. 31, 93.6.
For data from which curves c. e, f, g, h and i, were constructed, see Table 57 and
footnotes.
carried on by foreign-born laborers, including, probably, a large
proportion of those temporary immigrants known as “birds of
passage’ and also other newly arrived aliens. The general seasonal
character of the construction industry is a matter of common

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