t MIGRATION AND BUSINESS CYCLES 
The relatively tardy response of migration to the employment 
decline in 1920 and 1921, as shown in Charts 24 and 25, may be in 
part due to the desire of prospective immigrants to enter before 
the threatened restriction became effective. 
CHART 25 
CHANGES IN THE NUMBER EMPLOYED IN SELECTED INDUSTRIES 
CoMPARED WITH ALIEN MALE ARRIVALS LESS DEPARTURES! 
DEPRESSION OF 1921. 
Fig. A: During Stated Quarter. 
Fig. B: Cumulatively from October 1, 1920. 
+500 TE aA 1 errr D500 
ET gr Net arrivals in stated sii Sihostiss Lyrinive wise s 
gel VL 
; : clon Wl AI 
-500+ vr ze lng Ry WG YE Ag 1380 
pola by, compared wi adhd Ey 
-1000 — smploymen 7 nf 1970 11000 
-1500 — 141500 
o—o Change in employment from 
3 -2000 Fecedngoupiien, | -2000 
: oP 
-2500 Er Wl ty -2500 
3000} — | Ai 4 nek ce a= .-3000 
3500 A a PA RAE iE TE aE 50 
I iioeo 1921 1920 1921 1922 
sNumerical data in Table 32. 
Comparative Volume. 
In most of the eight quarters under consideration the volume 
of alien male net migration is relatively small in comparison to 
the concurrent change in employment. On the average, the quar- 
terly change in employment is ten times as great as the corresponding 
net alien male migration. 
Similarly, if we take the high quarter in 1920, that is, the third 
quarter, as our starting point, and compare the total net immigra- 
tion of alien males after that quarter with the total change in the 
number employed, (Fig. B of Chart 25) we find that by the first 
132