102 ECONOMIC ESSAYS IN HONOR OF JOHN BATES CLARK 
in bargaining power whether secured through voluntary or state 
action, as a leftward movement of the supply curve of the factor. 
It would probably not be 
characterized by a uni- 
form elasticity through- 
out its course but for the 
purpose of simplifying 
our analysis, we shall as- 
sume that there is such a 
uniformity. This, how- 
ever, is not nearly so im- 
portant relatively as the 
fact that the elasticity is 
on the whole less than 
before. And this is the 
point which should be 
stressed and the effects of 
which will be traced. 
B. The Effects of Changes in Bargaining Power. 
We may now proceed to examine what would be the effects 
of increase in bargaining 
power under different sets 
of elasticities of supply 
and we may use for the 
first case, that of com- 
plete inelasticity of sup- 
ply of both factors. We 
may represent in Figure 
17 the line AS as char- 
acterizing the original 
supply curves for both X 
and Y. But with the im- 
provement in the bar- 
gaining power of X, the 
supply “curve” of that 
factor, while continuing 
to be inelastic, moves to the left to the point B. At various 
prices equal amounts of X will be offered but they will in 
each instance be less than what was offered before. The ratio 
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